ratio [ 'reiʃiəu] n.比，比率
市盈率 p/e (price/earning) ratio
CNR Carrier-to-Noise Ratio 载噪比
SNR Signal to Noise Ratio 信噪比
Dilution ratio 稀释比例
CLR Cell Loss Ratio 信元丢失比率
plot ratio 容积率
p/e (price/earning) ratio 市盈率；
男女婴每年出生自然比率 natural ratio of males to females born each year
natural ratio of males to females born each year 男女婴每年出生自然比率
Calmar 比率 Calmar Ratio
Sharpe比率 Sharpe Ratio
Sortino比率 Sortino Ratio
杠杆借贷比率 Leverage Ratio
Catalyst ratio 固化剂比率
Turndown ratio 衰减比率
Readjust the asset-liability ratio of state-owned enterprises 调整国有企业资产负债比
Acid ratio 流动比率
ratio analysis 比率分析
asset liability ratio 资产负债比率
assets turnover ratio 资产周转比率
average earned ratio 平均收益率
capital and liability ratio 资本负债比率
capital ratio 资本比率
capitalization ratio 资产构成比率
conversion ratio 换算比率
current debt ratio 流动负债比率
current ratio 流动比率
dividend payout ratio 股息分配率，红利支付比率
earnings ratio 收益率
equity to assets ratio 权益对资产比率
equity to debt ratio 权益对债务比率
fixed assets ratio 固定资产比率
income to net worth ratio 净值收益率
input-output ratio 投入产出比率
liquid ratio 流动比率
liquidity ratio 流动比率,偿债能力比
loan-deposit ratio 贷款存款比率
net capital to debt ratio 净资产与债务比率
P/E ratio 市盈率
price-eanings(P/E) ratio 收益率
profit ratio of capital 资本利润率
profit ratio of paid-in capital 实收资本利润率
quick ratio 速动比率
Ratio 比率
activity ratios 经营比率
capitalization ratios 资本结构比率
debt to equity ratio 负债股本比率
liquid ratios 变现比率
price earnings ratio 市盈率
profitability ratios 盈利比率
ratio of current assets to fixed assets 流动资产与固定资产比率
ratio of current assets to current liability 流动资产与流动负债比率
ratio of equity(ROE) 股本利润率
ratio of sales(ROS) 销售利润率
return on investment ratio 投资回报率
saving ratio 储蓄率
total capital profit ratio 总资本利润率
压缩比
compression ratio
临界压缩比
critical compression ratio
膨胀比
expansion ratio
面容比
surface to volume ratio
行程缸径比
stroke-bore ratio
混合比
mixture ratio
空燃比
air fuel ratio
燃空比
fuel air ratio
燃料当量比
fuel equivalence ratio
燃烧室容积比
volume ratio of combustion cahmber
燃烧室口径比
surface-volume ratio of combustion chamber
通道面积比
area ratio of combustion chamber passage
给气比
delivery ratio
喷孔长径比
ratio of nozzle hole length nozzle diameter
增压比
supercharge ratio
空燃比反馈控制系统
air-fuel ratio feedback control system
稀释风道
dilution ratio
比功率
power/mass ratio
比扭矩
torque/maximum total mass ratio
中频抑制比
intermediate frequency rejection ratio
镜频抑制比
image rejection ratio
电压驻波比
voltage standing wave ratio(VSWR)
孔隙度
void ratio
滤膜孔隙率
void ratio of film
速比
speed ratio
变矩比
torque ratio
变速齿轮比（变速比）
transmission gear ratio
传动比
gear ratio
过载系数
overloading ratio
变矩系数
torque ratio
驱动轴减速比
axle ratio
总减速比
total reduction ratio
主降速齿轮减速比
final reduction gear ratio
驱动桥减速比
driveaxle ratio
The ratio of 10 to 5 is 2 to 1.
10与5之比为2比1。
The bottom chart shows the ratio of personal debt to personal income.
底端的图表显示了个人债务与个人收入的比例。
The adult to child ratio is 1 to 6.
大人与小孩之比是1比6。
That sex ratio will be favored which maximizes the number of descendants an individual will have and hence the number of gene copies transmitted.
能使个体拥有最多后代的性别比例被推崇，以便来使基因的数目也被传输下去。
Beam ratio 光束比
L／D ratio L/D比
Signal to noise ratio 信噪比
比 compete; ratio; compare
比率 rate; ratio; percentage
比值 ratio
对比 parallel; contrast; ratio; balance
比 [bǐ] /(particle used for comparison and "-er than")/to compare/to contrast/to gesture (with hands)/ratio/
比率 [bǐ lǜ] /ratio/rate/percentage/
比值 [bǐ zhí] /specific value/ratio/
剥采比 [bō cǎi bǐ] /stripping-to-ore ratio/stripping ratio/
采收率 [cǎi shōu lǜ] /recovery ratio/
存款准备金率 [cún kuǎn zhǔn bèi jīn lǜ] /deposit-reserve ratio/
股本金比率 [gǔ běn jīn bǐ lǜ] /equity ratio/
黄金分割 [huáng jīn fēn gē] /golden ratio/golden section/
证券化率 [zhèng quàn huà lǜ] /securitization ratio/
Being a man has always been dangerous.
做男人总是充满危险，
There are about 105 males born for every 100 females, but this ratio drops to near balance at the age of maturity, and among 70-year-olds there are twice as many women as men.
出生时男女比例大约是105:100，但到了成熟期，这一比例几乎持平，而在70岁的老人中女性是男性的两倍，
But the great universal of male mortality is being changed.
但是男性死亡率普遍偏高这种情况正在改变，
Now, by babies survive almost as well as girls do.
现在男婴存活率几乎同女婴一样高。
This means that, for the first time, there will be an excess of boys in those crucial years when the are searching for a mate.
这就意味着男孩到了寻找伴侣的关键年龄将首次出现男孩过剩现象。
More important, another chance for natural selection has been removed.
更重要的是，又一次自然选择的机会不复存在了。
{adj: proportional} having a constant ratio
{adj: reciprocal} of or relating to the multiplicative inverse of a quantity or function
"the reciprocal ratio of a:b is b:a"
{adj: second} having the second highest gear ratio
"second gear"
{adj: working, on the job} actively engaged in paid work
"the working population"
"the ratio of working men to unemployed"
"a working mother"
"robots can be on the job day and night"
{n: Hubble's constant, Hubble constant} (cosmology) the ratio of the speed of recession of a galaxy (due to the expansion of the universe) to its distance from the observer; the reciprocal of the Hubble constant is the age of the universe
{n: Kepler's third law, harmonic law} a law stating that the ratio of the square of the revolutionary period (in years) to the cube of the orbital axis (in astronomical units) is the same for all planets
{n: Mach number} the ratio of the speed of a moving body to the speed of sound
{n: Sitka spruce, Picea sitchensis} a large spruce that grows only along the northwestern coast of the United States and Canada; has sharp stiff needles and thin bark; the wood has a high ratio of strength to weight
{n: abundance} (chemistry) the ratio of the total mass of an element in the earth's crust to the total mass of the earth's crust; expressed as a percentage or in parts per million
{n: abundance} (physics) the ratio of the number of atoms of a specific isotope of an element to the total number of isotopes present
{n: albedo, reflective power} the ratio of reflected to incident light
{n: amplification, gain} the amount of increase in signal power or voltage or current expressed as the ratio of output to input
{n: analytical review} an auditing procedure based on ratios among accounts and tries to identify significant changes
{n: aspect ratio} the ratio of the width to the height of a tv picture
{n: atomic weight, relative atomic mass} (chemistry) the ratio of the atomic mass of an element to half the atomic mass of carbon
{n: bimetallism} a monetary standard under which the basic unit of currency is defined by stated amounts of two metals (usually gold and silver) with values set at a predetermined ratio
{n: birthrate, birth rate, fertility, fertility rate, natality} the ratio of live births in an area to the population of that area; expressed per 1000 population per year
{n: bulk modulus} the ratio of the change in pressure acting on a volume to the fractional change in volume
{n: case-to-infection proportion, case-to-infection ratio} the number of cases of a disease divided by the number of infections with the agent that causes the disease
{n: cephalic index, breadth index, cranial index} ratio (in percent) of the maximum breadth to the maximum length of a skull
{n: coefficient of elasticity, modulus of elasticity, elastic modulus} (physics) the ratio of the applied stress to the change in shape of an elastic body
{n: coefficient of friction} the ratio of the weight of an object being moved along a surface and the force that maintains contact between the object and the surface
{n: coefficient of mutual induction, mutual inductance} a measure of the induction between two circuits; the ratio of the electromotive force in a circuit to the corresponding change of current in a neighboring circuit; usually measured in henries
{n: coefficient of self induction, self-inductance} the ratio of the electromotive force produced in a circuit by self-induction to the rate of change of current producing it, expressed in henries
{n: cosecant, cosec} ratio of the hypotenuse to the opposite side of a right-angled triangle
{n: cosine, cos} ratio of the adjacent side to the hypotenuse of a right-angled triangle
{n: cotangent, cotan} ratio of the adjacent to the opposite side of a right-angled triangle
{n: crime rate} the ratio of crimes in an area to the population of that area; expressed per 1000 population per year
{n: deathrate, death rate, mortality, mortality rate, fatality rate} the ratio of deaths in an area to the population of that area; expressed per 1000 per year
{n: decibel, dB} a logarithmic unit of sound intensity; 10 times the logarithm of the ratio of the sound intensity to some reference intensity
{n: drag coefficient, coefficient of drag} the ratio of the drag on a body moving through air to the product of the velocity and the surface area of the body
{n: eccentricity} (geometry) a ratio describing the shape of a conic section; the ratio of the distance between the foci to the length of the major axis
"a circle is an ellipse with zero eccentricity"
{n: efficiency} the ratio of the output to the input of any system
{n: empirical formula} a chemical formula showing the ratio of elements in a compound rather than the total number of atoms
{n: employee turnover, turnover rate, turnover} the ratio of the number of workers that had to be replaced in a given time period to the average number of workers
{n: equilibrium constant} (chemistry) the ratio of concentrations when equilibrium is reached in a reversible reaction (when the rate of the forward reaction equals the rate of the reverse reaction)
{n: equilibrium law, law of chemical equilibrium} (chemistry) the principle that (at chemical equilibrium) in a reversible reaction the ratio of the rate of the forward reaction to the rate of the reverse reaction is a constant for that reaction
{n: facial index} the ratio (in percent) of the maximum width to the maximum height of the face
{n: factor of proportionality, constant of proportionality} the constant value of the ratio of two proportional quantities x and y; usually written y = kx, where k is the factor of proportionality
{n: first gear, first, low gear, low} the lowest forward gear ratio in the gear box of a motor vehicle; used to start a car moving
{n: focal ratio, f number, stop number, speed} the ratio of the focal length to the diameter of a (camera) lens system
{n: frequency response} (electronics) a response depicting the output-to-input ratio of a transducer as a function of frequency
{n: frequency, relative frequency} the ratio of the number of observations in a statistical category to the total number of observations
{n: gunpowder, powder} a mixture of potassium nitrate, charcoal, and sulfur in a 75:15:10 ratio which is used in gunnery, time fuses, and fireworks
{n: hematocrit, haematocrit, packed cell volume} the ratio of the volume occupied by packed red blood cells to the volume of the whole blood as measured by a hematocrit
{n: high gear, high} a forward gear with a gear ratio that gives the greatest vehicle velocity for a given engine speed
{n: index, index number, indicant, indicator} a number or ratio (a value on a scale of measurement) derived from a series of observed facts; can reveal relative changes as a function of time
{n: intelligence quotient, IQ, I.Q.} a measure of a person's intelligence as indicated by an intelligence test; the ratio of a person's mental age to their chronological age (multiplied by 100)
{n: kilometers per hour, kilometres per hour, kph, km/h} the ratio of the distance traveled (in kilometers) to the time spent traveling (in hours)
{n: load factor} (aeronautics) the ratio of an external load to the weight of the aircraft (measured in g)
{n: loading} the ratio of the gross weight of an airplane to some factor determining its lift
{n: loss ratio} the ratio of the annual claims paid by an insurance company to the premiums received
{n: magnification} the ratio of the size of an image to the size of the object
{n: margin of profit, profit margin, gross margin} the ratio gross profits divided by net sales
{n: mechanical advantage} the ratio of the force exerted by a machine to the force applied to it
{n: mileage, fuel consumption rate, gasoline mileage, gas mileage} the ratio of the number of miles traveled to the number of gallons of gasoline burned
{n: miles per hour, mph} the ratio of the distance traveled (in miles) to the time spent traveling (in hours)
{n: odds, betting odds} the ratio by which one better's wager is greater than that of another
"he offered odds of two to one"
{n: order of magnitude, magnitude} a number assigned to the ratio of two quantities; two quantities are of the same order of magnitude if one is less than 10 times as large as the other; the number of magnitudes that the quantities differ is specified to within a power of 10
{n: output-to-input ratio} the output power of a transducer divided by the input power
{n: pi} the ratio of the circumference to the diameter of a circle; approximately equal to 3.14159265358979323846...
{n: power loading} the ratio of the weight of an airplane to its engine power
{n: prevalence} (epidemiology) the ratio (for a given time period) of the number of occurrences of a disease or event to the number of units at risk in the population
{n: price-to-earnings ratio, P/E ratio} (stock market) the price of a stock divided by its earnings
{n: probability, chance} a measure of how likely it is that some event will occur; a number expressing the ratio of favorable cases to the whole number of cases possible
"the probability that an unbiased coin will fall with the head up is 0.5"
{n: productivity} (economics) the ratio of the quantity and quality of units produced to the labor per unit of time
{n: proportionality} a ratio of two quantities that is constant
{n: quotient} the ratio of two quantities to be divided
{n: ratio} the relative magnitudes of two quantities (usually expressed as a quotient)
{n: refractive index, index of refraction} the ratio of the velocity of light in a vacuum to that in a medium
{n: relative density} the ratio of the density of something to the density of a standard
{n: relative humidity} the ratio of the amount of water in the air at a give temperature to the maximum amount it could hold at that temperature; expressed as a percentage
{n: respiratory quotient} the ratio of the volume of carbon dioxide expired to the volume of oxygen consumed by an organism or cell in a given period of time
{n: safety factor, factor of safety} the ratio of the breaking stress of a structure to the estimated maximum stress in ordinary use
{n: scale} the ratio between the size of something and a representation of it
"the scale of the map"
"the scale of the model"
{n: secant, sec} ratio of the hypotenuse to the adjacent side of a right-angled triangle
{n: second gear, second} the gear that has the second lowest forward gear ratio in the gear box of a motor vehicle
"he had to shift down into second to make the hill"
{n: signal-to-noise ratio, signal-to-noise, signal/noise ratio, signal/noise, S/N} the ratio of signal intensity to noise intensity
{n: sine, sin} ratio of the opposite side to the hypotenuse of a right-angled triangle
{n: span loading} the ratio of the weight of an airplane to its wingspan
{n: standing wave, stationary wave} a wave (as a sound wave in a chamber or an electromagnetic wave in a transmission line) in which the ratio of its instantaneous amplitude at one point to that at any other point does not vary with time
{n: stoichiometry} (chemistry) the relation between the quantities of substances that take part in a reaction or form a compound (typically a ratio of whole integers)
{n: tangent, tan} ratio of the opposite to the adjacent side of a right-angled triangle
{n: third gear, third} the third from the lowest forward ratio gear in the gear box of a motor vehicle
"you shouldn't try to start in third gear"
{n: time constant} the ratio of the inductance of a circuit in henries to its resistance in ohms
{n: time-scale factor} the ratio of the simulation time to the time of the real process
{n: trigonometric function, circular function} function of an angle expressed as a ratio of the sides of right-angled triangle containing the angle
{n: voltage regulator} a transformer whose voltage ratio of transformation can be adjusted
{n: wing loading} the ratio of the weight of an airplane to its wing area
The challenge for Baekeland and his rivals was to find some set of ratio of ingredients and heat and pressure that would yield a more workable, shellac-like substance.
贝克兰和他的对手面临的共同挑战就是要找到某组条件－某种难以掌握的成份比率及热量和压力－能生产出更有效的类似紫胶的东西。
Sally Bowman Alden, executive director of the Computer learning Foundation in Palo Alto'. Calif., says that the national ratio of students to computers is 16 to 1.
加州帕格阿尔托市的计算机学习基金会执行主席萨莉·鲍曼·奥尔登说，学生和计算机的比例在全国范围内为 16比 1。
But in three years that ratio is expected to flip, meaning that by 2001 most signals zipping around the Earth " will be machines talking to machines ".
但三年以内这个比例会迅速上升，这意味着到 2001年，飞绕地球的大多数信号都将是 "机器与机器的对话 "。
The evolution of sex ratios has produced, in most plants and animals with separate sexes, approximately equal numbers of males and females.
性别比例（sex ratio）的演化在绝大部分性别各异的动植物身上，产生了数量大致相等的雌性与雄性物体。
It is argued that the sex ratio will evolve so as to maximize the number of meetings between individuals of the opposite sex.
据称，性别比例之所以会演化，就是为了能在最大程度上增加相反性别的生物个体之间交配的数量。
This is essentially a "group selection" argument.
本质上而言，此乃一种“群体选择”（group selection）的论点。
That sex ratio will be favored which maximizes the number of descendants an individual will have and hence the number of gene copies transmitted.
生物体所会择取的是那样一种性别比例，那种性别比例能在最大程度上增加一个个体所能拥有的后代数量，并因此能在最大程度上增加所传递到后代身上去的基因复制品的数量。
Thus a one-to-one sex ratio is the only stable ratio; it is an "evolutionarily stable strategy."
因此，一比一的性别比例是唯一一种稳定不变的比例；它是一种“生物进化上的稳定策略”（evolutionarily stablestrategy）。
If such a gene occurs on a sex-determining (X or Y) chromosome, then highly aberrant sex ratios can occur.
如果这样的一个基因发生在一个能决定性别（sex-determiningX或Y）的染色体上，则极度反常的性别比例便告出现。
But more immediately relevant to game theory are the sex ratios in certain parasitic wasp species that have a large excess of females.
但是，与博弈理论更为直接相关的是某些寄生性黄蜂种类的性别比例，雌性黄蜂占有绝对的过量。
Air-fuel ratio空气燃油混合比
Aspect ratio 高宽比
Combustion ratio 压缩比
Gear ratio 齿轮比
S/V ratio 表面积与容积比
导数比率法 derivative ratio method
分流比 split ratio
吸光度比值法 absorbance ratio method
相比率 phase ratio
噪信比 noise –signal ratio
spsc-71112121
Sonic cement bond ratio logging services
水泥胶结率声波测井
acid-test ratio 酸性测验比率
activity ratio 实际作业与预算比率
current ratio 流动比率
current ratio 流动化率
debt ratio 债务比率
debt-to-equity ratio 债务与资本比率
financial ratio 财务比率
gearing ratio 资本与负债的比率；资本借贷比率
leverage ratio
liquidaty ratio 速动比率；流动资金比率
liquidity ratio 流动资金比率
price-earning ratio 市价盈利率
price-earning ratio 市价盈利率；市盈率
profitability ratio 盈利能力比率
quick ratio 速动比率
ratio analysis 比率比析
working capital ratio 营运资金比率
advance-to return-time ratio 急回系数
advance-to return-time ratio 行程速比系数
angular velocity ratio 角速比
contact ratio 重合度
eccentricity ratio 偏心率
gear ratio 齿数比
overlap contact ratio 纵向重合度
reduction ratio 减速比
sliding ratio 滑动率
total contact ratio 总重合度
transmission ratio, speed ratio 传动比
transverse contact ratio 端面重合度
charge to mass ratio 荷质比
Poisson's ratio 泊松比
turns ratio 匝数比
velocity ratio 速度比
arm ratio [染色体]臂比
axial ratio 轴比
base ratio 碱基比
gametic ratio 配子（分离）比
packaging ratio 包装率[一条染色单体基本纤维的全长与DNA双螺旋的全长之比，反映DNA分子的凝聚状态]
primary sex ratio 初级性比
acoustic ratio 声比
actual transformation ratio of voltage transformer 电压互感器的实际变化
actral transformation ratio of current transformer 电流互感器的实际变化
actual voltage ratio 实际电压比
amplitude ratio-phase difference instrument 振幅比—相位差仪
beam ratio 声束比
common mode rejection ratio(CMRR) 共模抑制比
critical pressure differential ratio 临界压差比
critical pressure ratio 临界压力比
d.c.resistor volt ratio box 直流电阻分压箱
decrement ratio 减幅比
diameter ratio 直径比
differential pressure ratio 差压比
dilution ratio[rate] 稀释比[率]
dynamic stiffenss ratio 动刚度比
fixed resistance input type volt ratio box 定阻输入式分压箱
fixed resistance output type volt ratio box 定阻输出式分压箱
isotope ratio measurement 同位素丰度测定
mass-to-charge ratio 质荷比
mixing ratio 混合比
nominal voltage ratio 标称电压比
phase ratio 相比率
pressure ratio 压力比
rated transformation ratio (of a current transformer) （电流互感器的）额定变比
rated transformation ratio (of a voltage transformer) （电压互感器的）额定变比
ratio chromatism 倍率色差
ratio controller 比值控制器
ratio meter 比率表
ratio of specific heat capacities 比热比
ratio of the pole spacing to the bore diameter of the pole pieces 极靴的间距与孔径比
ratio station 比值操作器
ratio thermometer 比色温度计
resistance ratio(of resistance thermometer sensor) (热电阻的）电阻比
scattering ion energy ratio 散射离子的能量比值
series-mode rejection ratio(SMRR) 串模抑制比
signal-to-noise ratio 信噪比
single-path ratio thermometer 单通道比色温度计
stray radiant power ratio 杂散辐射功率比
stress ratio 应力比
transfer ratio 传送比率
transfer ratio error 传送比率误差
unbalance reduction ratio (URR) 不平衡量减少率
voltage ratio 电压比
voltage ratio of a capaitor divider 电容器式分压器的电压比
constituent ratio 构成比，结构相对数
Critical ratio 临界比
Likelihood ratio 似然比
Ratio 比例
ratio 比
relative ratio 比较相对数
relative ratio with fixed base 定基比
sex ratio 性比例
variance ratio 方差比
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