decrease [ di'kri:s, 'di:kri:s] vi.&n.减少，减少
decrease [di'kri:s, 'di:kri:s] v.减少，降低，缩短
decreasing 递减
decrease 减少
decrease 减少
Although many people claim that, along with the rapidly economic development, the number of people who use bicycle are decreasing and bicycle is bound to die out. The information I've collected over the recent years leads me to believe that bicycle will continue to play extremely important roles in modern society.
尽管许多人认为随着经济的高速发展，用自行车的人数会减少，自行车可能会消亡， 然而，这几年我收集的一些信息让我相信自行车仍然会继续在现代社会发挥极其重要的作用。
decreasing depreciation 递减折旧
The survey shows that there is a decrease in the number of young people out of work.
调查表明，年轻人的失业率下降了。
The population growth in that city is decreasing by 1.5% each year.
那个城市的人口增长率每年下降1.5%。
There has been a decrease in the number of young people out of work.
年轻人的失业率下降了。
The population growth in that city is decreasing by 1.5% each year.
那个城市的人口增长率每年下降1.5%。
I have spent a lot of money this week, so the amount of money in my account has decreased.
这个星期我花了许多钱，所以我账户上的钱减少了。
What factors are responsible for a decreased population?
人口减少的原因是什么？
As time went on, so their hopes began to decrease.
随着时间的推移，他们的希望开始变得越来越小了。
Love is like the moon; when it does not increase it decreases.
爱情像月亮，不营即亏。
When riches increase, the body decreases.
财多体衰。
The efficiency is greatly raised,and the intensity of labor is decreased.
工作效率大大地提高了，而劳动强度却降低了。
down : 减少（强度，量和体积）(a decrease in intensity, amount, bulk)
dwindle down 减少
die down 变弱，逐渐停止
go down 平静下来
mark down 削减
hold down 压低
burn down (火)减弱, 烧坏
slow down 慢下来
burn down 烧掉
wash down 冲淡
clean down 弄干净
rub down 擦干净
bring down 降低
keep down 缩减
trim down 裁减
water down 冲淡
thin down 减少
run down 用光衰弱
wear down 削减，磨损
come down 下跌
knock down 降价
减 [jiǎn] /to lower/to decrease/to reduce/to subtract/to diminish/
减少 [jiǎn shǎo] /to lessen/to decrease/to reduce/to lower/
煞 [shā] /decrease/tighten/
损益 [sǔn yì] /profit and loss/increase and decrease/
缩小 [suō xiǎo] /reduce/decrease/
下降 [xià jiàng] /to decline/to drop/to fall/to go down/to decrease/
消炎 [xiāo yán] /decrease inflammation/
A survey of news stories in 1996 reveals that the anti-science tag has been attached to many other groups as well, from authorities who advocated the elimination of the last remaining stocks of smallpox virus to Republicans who advocated decreased funding for basic research.
1996年对新闻报道的调查表明，反科学的标签也贴在了许多其他群体上，从提倡消灭所有现存的天花病毒的官方人士到倡议削减基础研究基金的共和党人。
{adj: age-related} changing (increasing or decreasing) as an individual's age increases
{adj: allargando} gradually decreasing in tempo and broadening in manner
{adj: calando} gradually decreasing in tempo and volume
{adj: decreased, reduced} made less in size or amount or degree
<-> increased
{adj: decreasing monotonic} consistently decreasing
"a decreasing monotonic function"
{adj: decreasing} becoming less or smaller
<-> increasing
{adj: decreasing} music
<-> increasing
{adj: decrescendo, diminuendo} gradually decreasing in volume
{adj: deflationary} associated with or tending to cause decreases in consumer prices or increases in the purchasing power of money
"deflationary measures"
<-> inflationary
{adj: degressive} (of taxes) gradually decreasing in rate on sums below a certain amount
{adj: depreciating, depreciative, depreciatory} tending to decrease or cause a decrease in value
"a depreciating currency"
"depreciatory effects on prices"
{adj: detractive} causing to decrease in importance or value
"detractive influences on the volume of investment"
{adj: direct} similar in nature or effect or relation to another quantity
"a term is in direct proportion to another term if it increases (or decreases) as the other increases (or decreases)"
<-> inverse
{adj: dwindling, tapering, tapering off} gradually decreasing until little remains
{adj: falling} decreasing in amount or degree
"falling temperature"
{adj: graduated} (of taxes) decreasing as the amount taxed increases
{adj: hypovolemic, hypovolaemic} of or relating to a decrease in the volume of circulating blood
{adj: increased} made greater in size or amount or degree
<-> decreased
{adj: increasing} becoming greater or larger
"increasing prices"
<-> decreasing
{adj: increasing} music
<-> decreasing
{adj: inverse} opposite in nature or effect or relation to another quantity
"a term is in inverse proportion to another term if it increases (or decreases) as the other decreases (or increases)"
<-> direct
{adj: lessened} decreased in severity; made less harsh
{adj: monotonic, monotone} of a sequence or function; consistently increasing and never decreasing or consistently decreasing and never increasing in value
<-> nonmonotonic
{adj: rallentando, ritardando, ritenuto, rit.} gradually decreasing in tempo
{adj: regressive} (of taxes) adjusted so that the rate decreases as the amount of income increases
<-> progressive
{adj: waning} (of the moon) pertaining to the period during which the visible surface of the moon decreases
"after full moon comes the waning moon"
<-> waxing
{adv: correspondingly} in a corresponding manner
"the temperature decreases correspondingly"
{n: Maxwell's demon} an imaginary creature that controls a small hole in a partition that divides a chamber filled with gas into two parts and allows fast molecules to move in one direction and slow molecules to move in the other direction through the hole; this would result in one part of the container becoming warmer and the other cooler, thus decreasing entropy and violating the second law of thermodynamics
{n: Snellen chart} display consisting of a printed card with letters and numbers in lines of decreasing size; used to test visual acuity
{n: absorption coefficient, coefficient of absorption, absorptance} a measure of the rate of decrease in the intensity of electromagnetic radiation (as light) as it passes through a given substance; the fraction of incident radiant energy absorbed per unit mass or thickness of an absorber
"absorptance equals 1 minus transmittance"
{n: amphetamine, pep pill, upper, speed} a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression
{n: anemic anoxia} anoxia resulting from a decreased concentration of hemoglobin
{n: anemic hypoxia} hypoxia resulting from a decreased concentration of hemoglobin
{n: atrophy, wasting, wasting away} a decrease in size of an organ caused by disease or disuse
{n: beta blocker, beta-adrenergic blocker, beta-adrenergic blocking agent} any of various drugs used in treating hypertension or arrhythmia; decreases force and rate of heart contractions by blocking beta-adrenergic receptors of the autonomic nervous system
{n: casualty} a decrease of military personnel or equipment
{n: celluloid} highly flammable substance made from cellulose nitrate and camphor; used in e.g. motion-picture and X-ray film; its use has decreased with the development of nonflammable thermoplastics
{n: cimetidine, Tagamet} a drug (trade name Tagamet) used to treat peptic ulcers by decreasing the secretion of stomach acid
{n: contraction} the act of decreasing (something) in size or volume or quantity or scope
<-> expansion
{n: corticosteroid, corticoid, adrenal cortical steroid} a steroid hormone produced by the adrenal cortex or synthesized; administered as drugs they reduce swelling and decrease the body's immune response
"adrenal cortical steroids are used to treat many different conditions"
{n: damper, muffler} a device that decreases the amplitude of electronic, mechanical, acoustical, or aerodynamic oscillations
{n: decay, decline} a gradual decrease; as of stored charge or current
{n: deceleration, slowing, retardation} a decrease in rate of change
"the deceleration of the arms race"
<-> acceleration
{n: deceleration} (physics) a rate of decrease in velocity
<-> acceleration
{n: deceleration} the act of decelerating; decreasing the speed
"he initiated deceleration by braking"
<-> acceleration
{n: decongestant} a drug that decreases pulmonary congestion
{n: decrease, decrement} a process of becoming smaller or shorter
<-> increase, increment
{n: decrease, decrement} the amount by which something decreases
<-> increase
{n: decrease, diminution, reduction, step-down} the act of decreasing or reducing something
<-> increase
{n: decrease, lessening, drop-off} a change downward
"there was a decrease in his temperature as the fever subsided"
"there was a sharp drop-off in sales"
<-> increase
{n: decrescendo, diminuendo} (music) a gradual decrease in loudness
{n: depletion} the act of decreasing something markedly
{n: depreciation, wear and tear} decrease in value of an asset due to obsolescence or use
{n: depreciation} a decrease in price or value
"depreciation of the dollar against the yen"
<-> appreciation
{n: devaluation} an official lowering of a nation's currency; a decrease in the value of a country's currency relative to that of foreign countries
{n: drop, dip, fall, free fall} a sudden sharp decrease in some quantity
"a drop of 57 points on the Dow Jones index"
"there was a drop in pressure in the pulmonary artery"
"a dip in prices"
"when that became known the price of their stock went into free fall"
{n: emphysema, pulmonary emphysema} an abnormal condition of the lungs marked by decreased respiratory function; associated with smoking or chronic bronchitis or old age
{n: eosinopenia} a decrease in the number of eosinophils in the blood
{n: escalator clause, escalator} a clause in a contract that provides for an increase or a decrease in wages or prices or benefits etc. depending on certain conditions (as a change in the cost of living index)
{n: evening, eve, even, eventide} the latter part of the day (the period of decreasing daylight from late afternoon until nightfall)
"he enjoyed the evening light across the lake"
{n: exponential decay, exponential return} a decrease that follows an exponential function
{n: fatality, human death} a death resulting from an accident or a disaster
"a decrease in the number of automobile fatalities"
{n: financial loss} loss of money or decrease in financial value
{n: flexion, flexure} act of bending a joint; especially a joint between the bones of a limb so that the angle between them is decreased
<-> extension
{n: glomerulonephritis} nephritis marked by inflammation of the glomeruli of the kidney; characterized by decreased production of urine and by the presence of blood and protein in the urine and by edema
{n: high-density lipoprotein, HDL, alpha-lipoprotein} a lipoprotein that transports cholesterol in the blood; composed of a high proportion of protein and relatively little cholesterol; high levels are thought to be associated with decreased risk of coronary heart disease and atherosclerosis
{n: hypersplenism} enlarged spleen and a decrease in one or more types of blood cells; associated with many disorders
{n: hypochromic anemia, hypochromic anaemia} anemia characterized by a decrease in the concentration of corpuscular hemoglobin
{n: hypoesthesia, hypesthesia} impairment of tactile sensitivity; decrease of sensitivity
{n: hypoglycemic agent, hypoglycaemic agent} any of various agents that decrease the level of glucose in the blood and are used in the treatment of diabetes mellitus
{n: hypoplasia} underdevelopment of an organ because of a decrease in the number of cells
{n: hypovolemia, hypovolaemia} a blood disorder consisting of a decrease in the volume of circulating blood
<-> hypervolemia
{n: increase, increment, growth} a process of becoming larger or longer or more numerous or more important
"the increase in unemployment"
"the growth of population"
<-> decrease, decrement
{n: increase, increment} the amount by which something increases
"they proposed an increase of 15 percent in the fare"
<-> decrease
{n: increase, step-up} the act of increasing something
"he gave me an increase in salary"
<-> decrease
{n: increase} a change resulting in an increase
"the increase is scheduled for next month"
<-> decrease
{n: labetalol, labetalol hydrochloride, Trandate, Normodyne} antihypertensive drug (trade names Trandate and Normodyne) that blocks alpha and beta-adrenergic receptors of the sympathetic nervous system (leading to a decrease in blood pressure)
{n: lochia} substance discharged from the vagina (cellular debris and mucus and blood) that gradually decreases in amount during the weeks following childbirth
{n: marginal cost, incremental cost, differential cost} the increase or decrease in costs as a result of one more or one less unit of output
{n: monetarist} an advocate of the theory that economic fluctuations are caused by increases or decreases in the supply of money
{n: muscle relaxant} a drug that reduces muscle contractility by blocking the transmission of nerve impulses or by decreasing the excitability of the motor end plate or by other actions
{n: mydriasis} reflex pupillary dilation as a muscle pulls the iris outward; occurs in response to a decrease in light or certain drugs
{n: narrowing} a decrease in width
<-> widening
{n: negative feedback} feedback in opposite phase with (decreasing) the input
{n: negative reinforcing stimulus, negative reinforcer} a reinforcing stimulus whose removal serves to decrease the likelihood of the response that produced it
{n: neutropenia} leukopenia in which the decrease is primarily in number of neutrophils (the chief phagocytic leukocyte)
{n: processing time} the time it takes to complete a prescribed procedure
"they increased output by decreasing processing time"
{n: pulsation} a periodically recurring phenomenon that alternately increases and decreases some quantity
{n: rarefaction} a decrease in the density of something
"a sound wave causes periodic rarefactions in its medium"
{n: reaction turbine} a turbine with blades arranged to develop torque from gradual decrease of steam pressure from inlet to exhaust
{n: reverse split, reverse stock split, split down} a decrease in the number of outstanding shares of a corporation without changing the shareholders' equity
{n: shortening} act of decreasing in length
"the dress needs shortening"
{n: sleeping} the suspension of consciousness and decrease in metabolic rate
{n: slippage} a decrease of transmitted power in a mechanical system caused by slipping
{n: strawberry hemangioma, strawberry haemangioma} a congenital bright red superficial vascular tumor resembling a strawberry; tends to decrease in size during childhood
{n: tide} something that may increase or decrease (like the tides of the sea)
"a rising tide of popular interest"
{n: utility} the service (electric power or water or transportation) provided by a public utility
"the cost of utilities never decreases"
"all the utilities were lost after the hurricane"
{n: vasoconstriction} decrease in the diameter of blood vessels
{n: voltage drop} a decrease in voltage along a conductor through which current is flowing
{n: waning} a gradual decrease in magnitude or extent
"the waning of his enthusiasm was obvious"
"the waxing and waning of the moon"
<-> waxing
{n: xerostomia, dry mouth} abnormal dryness of the mouth resulting from decreased secretion of saliva
{v: change intensity} increase or decrease in intensity
{v: decrease, diminish, lessen, fall} decrease in size, extent, or range
"The amount of homework decreased towards the end of the semester"
"The cabin pressure fell dramatically"
"her weight fall to under a hundred pounds"
"his voice fell to a whisper"
<-> increase
{v: decrease, lessen, minify} make smaller
"He decreased his staff"
<-> increase
{v: depressurize, depressurise, decompress} decrease the pressure of
"depressurize the cabin in the air plane"
<-> pressurise, pressurize
{v: increase} become bigger or greater in amount
"The amount of work increased"
<-> decrease
{v: increase} make bigger or more
"The boss finally increased her salary"
"The university increased the number of students it admitted"
<-> decrease
{v: lift} take off or away by decreasing
"lift the pressure"
{v: pare, pare down} decrease gradually or bit by bit
{v: shrink, shrivel} decrease in size, range, or extent
"His earnings shrank"
"My courage shrivelled when I saw the task before me"
{v: transform} increase or decrease (an alternating current or voltage)
{v: undulate} increase and decrease in volume or pitch, as if in waves
"The singer's voice undulated"
{v: vanish, fly, vaporize} decrease rapidly and disappear
"the money vanished in las Vegas"
"all my stock assets have vaporized"
{v: wane} decrease in phase
"the moon is waning"
<-> wax
Treatment with anti-inflammatory drugs coupled with a decrease in activity may be just as effective, researchers say.
研究人员认为使用消炎药并减少活动的疗法也许同样有效。
Surprisingly, 18-to-29-year olds and folks in the South, where the hot climate decreases the enthusiasm for exercise.
令人讶的是，生活在南部的 18-29岁的年轻人的重增加得最快，因为那里炎热的天减低了人们运动的热情。
Besides reducing traffic congestion, the system is expected to help decrease Bangkok's air pollution.
这条铁路的修建不仅可以缓解交通拥挤，还有助于改善曼谷的空气污染。
By the year 2025, AIDS will be by far the major killer of young Africans, decreasing life expectancy to as low as 40 years in some countries and single-handedly erasing the public health gains of the past 50 years.
到 2025年，爱滋病将成为杀害非洲年轻人的最大凶手，在一些国家，人口的预计寿命将会降低至 40岁，过去 50年在公共卫生领域所取得的的成就，就这样被轻易抹煞得干干净净。
This model assumes that the atmosphere's relative humidity remains constant and the temperature decreases with altitude at a rate of 6.5°C per kilometer.
该模型假设，大气的相对湿度保持稳定不变，这种情况下温度将以每公里6.5℃的比例随着高度的上升而递增。
The heating capacity of a heat pump decreases as the outdoor temperature falls.
热泵的加热功能会随着室外温度的下降而减弱。
Studies of certain fossil distributions and of the pollen of certain temperate plants suggest decreases of a degree or two in both summer and winter temperatures and, therefore, that we may be in the declining climatic phase leading to glaciation and extinction.
对某些化石分布以及对某些温带植物的花粉所作的研究表明，无论是夏天还是冬天的气温都有1至2度的下降，因此，我们有可能处在一个气候日趋下降的阶段，导致冰川作用以及灭绝之灾的降临。
Positive signs are beginning to emerge. In Indonesia's Aceh province, the region hardest hit by the tsunami, U.N. officials report the number of refugee camps has decreased by 75 percent during the past week.
现在已经出现了一些令人鼓舞的迹象。联合国官员报告说，在灾情最重的印尼亚齐省，过去一个星期里， 难民营的数目减少了75%。
E28.3
Primary ovarian failure
Decreased estrogen
Premature menopause NOS
Resistant ovary syndrome
Excludes: menopausal and female climacteric states (N95.1)
pure gonadal dysgenesis (Q99.1)
Turner's syndrome (Q96.-)
原发性卵巢功能衰竭
动情素减少
早发性停经 ， 其他未明示
阻抗性卵巢徵候群
不包含 ： 停经及女性更年期状态 (N95.1)
纯性腺发育不良 (Q99.1)
特纳氏 (Turner's) 徵候群 (Q96.-)
F30.0
Hypomania
A disorder characterized by a persistent mild elevation of mood, increased energy and
activity, and usually marked feelings of well-being and both physical and mental
efficiency. Increased sociability, talkativeness, over-familiarity, increased sexual
energy, and a decreased need for sleep are often present but not to the extent that they
lead to severe disruption of work or result in social rejection. Irritability, conceit,
and boorish behaviour may take the place of the more usual euphoric sociability. The
disturbances of mood and behaviour are not accompanied by hallucinations or delusions.
轻躁症
持续的情绪轻微高扬 （ 至少持续数天 ） ， 活力与活
动量增加 ， 通常感觉一切都顺利 ， 且有很好的身心
效力。通常会社交增加 ， 爱说话 ， 过度亲密 ， 性欲
增加 ， 减少睡眠需求等 ， 但其严重度不致於干扰其
工作常规或社交上被人排斥。有时呈现易怒 ， 自夸
及粗野行为 ， 而没有常见之溢乐性社交行为。这些
情感与行为障碍不会伴有幻觉或妄想。
F30.1
Mania without psychotic symptoms
Mood is elevated out of keeping with the patient's circumstances and may vary from
carefree joviality to almost uncontrollable excitement. Elation is accompanied by
increased energy, resulting in overactivity, pressure of speech, and a decreased need for
sleep. Attention cannot be sustained, and there is often marked distractibility.
Self-esteem is often inflated with grandiose ideas and overconfidence. Loss of normal
social inhibitions may result in behaviour that is reckless, foolhardy, or inappropriate
to the circumstances, and out of character.
无精神病性症状之躁症
情绪高昂之变动与病人的环境不协调 ， 可从无忧无
虑的快乐感到几乎无法控制的激动。情绪高扬伴随
活动力增加 ， 造成活动过度、说话急迫、睡眠需求
减少。注意力不能持续 ， 时常很明显的易於分心。
自我评价膨胀 ， 很夸大或过於自信的想法。患者社
会情境适当性不加以考量 ， 其行为会因而鲁莽、有
勇无谋或显得与社会情境不相宜 ， 与原来个性不相
称。
F31
Bipolar affective disorder
A disorder characterized by two or more episodes in which the patient's mood and activity
levels are significantly disturbed, this disturbance consisting on some occasions of an
elevation of mood and increased energy and activity (hypomania or mania) and on others of
a lowering of mood and decreased energy and activity (depression). Repeated episodes of
hypomania or mania only are classified as bipolar (F31.8).
Includes: manic-depressive:
. illness
. psychosis
. reaction
Excludes: bipolar disorder, single manic episode (F30.-)
cyclothymia (F34.0)
双相 （ 极 ） 性情感障碍
疾病的特徵是二次或更多次的发作 ， 病人的情绪 ，
活动量有显着障碍 ， 包含一些情绪高昂 ， 活动量与
活力增加的发作 （ 躁症或轻躁症 ） 及一些情感低沈
， 活动量与活力降低 （ 忧郁症 ） 的发作。只有重覆
轻躁症或躁症发作应分类为双相 （ 极 ） 性情感症
(F31.8) 之一种。
包含 ： 躁郁 ：
． 疾病
． 精神病
． 反应
不包含 ： 双相性情感障碍症 ， 单躁症发作 (bipolar disorder
, single manic episode (F30.-)
循环情感障碍症 (cyclothymia F34.0)
F32
Depressive episode
In typical mild, moderate, or severe depressive episodes, the patient suffers from
lowering of mood, reduction of energy, and decrease in activity. Capacity for enjoyment,
interest, and concentration is reduced, and marked tiredness after even minimum effort is
common. Sleep is usually disturbed and appetite diminished. Self-esteem and self-
confidence are almost always reduced and, even in the mild form, some ideas of guilt or
worthlessness are often present. The lowered mood varies little from day to day, is
unresponsive to circumstances and may be accompanied by so-called "somatic"
symptoms, such as loss of interest and pleasurable feelings, waking in the morning several
hours before the usual time, depression worst in the morning, marked psychomotor
retardation, agitation, loss of appetite, weight loss, and loss of libido. Depending upon
the number and severity of the symptoms, a depressive episode may be specified as mild,
moderate or severe.
Includes: single episodes of:
. depressive reaction
. psychogenic depression
. reactive depression
Excludes: adjustment disorder (F43.2)
recurrent depressive disorder (F33.-)
when associated with conduct disorders in F91.- (F92.0)
郁症发作
典型的轻度 (F32.0) 、中度 (F32.1) 或重度 (F32.2及.3) 忧郁症发
作 ， 患者通常有忧郁情绪 ， 体力下降 ， 活动降低。
快乐感、兴趣、注意力均减低 ， 只稍微做事後即有
明显的疲倦是常见的。睡眠障碍 ， 食欲减低 ， 自我
评价与自信减低 ， 有罪恶感与无用感的意念 （ 甚至
在轻度忧郁发作时亦存在 ） 。每一天的情绪持续低
潮 ， 变化不大 ， 对生活情境常无反应。
上述症状中的一些项目可能很显着 ， 且展现特异之
表徵 ， 此特异表徵被普遍地认为有特殊临床意义。
最典型的例子是所谓的 ＂ 常伴有身体性 (somatic) 症状 ″
， 如失去兴趣或快乐感 ， 较平日睡醒时间更早数小
时睡醒 ， 一天之中早上更加忧郁 ， 精神运动迟滞或
激动 ， 丧失食欲 ， 体重减轻 ， 丧失性欲。由上述症
状数目与严重度 ， 可以区分为轻度 (F32.0) 、中度 （F32.1)
及重度 (F32.3及.3) 忧郁发作。
包含 ： 单一次发作 ：
． 忧郁反应
． 心因性忧郁
． 反应性忧郁
不包含 ： 适应障碍症 （F43.2)
复发性郁症 （F33.-）
伴有 F91.- 之行为障碍症 (F92.0)
F48.0
Neurasthenia
Considerable cultural variations occur in the presentation of this disorder, and two main
types occur, with substantial overlap. In one type, the main feature is a complaint of
increased fatigue after mental effort, often associated with some decrease in occupational
performance or coping efficiency in daily tasks. The mental fatiguability is typically
described as an unpleasant intrusion of distracting associations or recollections,
difficulty in concentrating, and generally inefficient thinking. In the other type, the
emphasis is on feelings of bodily or physical weakness and exhaustion after only minimal
effort, accompanied by a feeling of muscular aches and pains and inability to relax. In
both types a variety of other unpleasant physical feelings is common, such as dizziness,
tension headaches, and feelings of general instability. Worry about decreasing mental and
bodily well-being, irritability, anhedonia, and varying minor degrees of both depression
and anxiety are all common. Sleep is often disturbed in its initial and middle phases but
hypersomnia may also be prominent.
Fatigue syndrome
Use additional code, if desired, to identify previous physical illness.
Excludes: asthenia NOS (R53)
burn-out (Z73.0)
malaise and fatigue (R53)
postviral fatigue syndrome (G93.3)
psychasthenia (F48.8)
神经衰弱症
此疾患之出现有相当不同的文化背景因素 ， 而可见
两类 ， 但重叠性高。第一类之主要表现在精神活动
之後抱怨的疲惫感 ， 常伴随工作表现或每天日常生
活效率的减低。典型的精神疲惫状况可以时常以侵
入不愉快且不相关的联想、集中注意力困难及完全
无效率的思考等来描述。第二类即强调在稍微活动
之後 ， 发生身体衰弱及耗竭感 ， 伴随肌肉疼痛及无
法放松。这两类病况常会伴随出现其他各种身体不
舒服的感觉 ， 如头晕、紧张性头痛及全身违和的感
觉。担忧心身健康会持续下降、易怒、快乐感缺失
、及轻微程度的焦虑与忧郁等都是常见的。睡眠的
初期及中期常出障碍 ， 但可能也有过度睡眠的情况
。
疲倦徵候群
若先前有其他身体疾病 ， 可以加以标示。
不包含 ： 无力 ， 其他未明示者 （R53）
过劳 （Z73.0）
疲惫 （R53）
病毒感染後疲惫徵候群 （G93.3）
精神衰弱症 （F48.8）
R01.2
Other cardiac sounds
Cardiac dullness, increased or decreased
Precordial friction
其他不正常心音
变大或变小的心敲击浊音
前胸摩擦音
全变差下降格式 total variation decreasing scheme TVD scheme
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