ratio

英 [ˈreɪʃiəʊ]

美 [ˈreɪʃioʊ]

n.  比率; 比例

复数：ratios　

CET4CET6考研TOEFLIELTSTEM4TEM8BEC医学

Collins.2 / BNC.2365 / COCA.3088

牛津词典

noun

• 比率；比例
  the relationship between two groups of people or things that is represented by two numbers showing how much larger one group is than the other
  1. What is the ratio of men to women in the department?
     这个部门的男女比例是多少？
  2. The school has a very high teacher-student ratio.
     这所学校的师生比例很高。
  3. The ratio of applications to available places currently stands at 100:1.
     目前，申请人数和就业岗位的比例为100:1。

柯林斯词典

• N-COUNT 比;比率;比例
  Aratiois a relationship between two things when it is expressed in numbers or amounts. For example, if there are ten boys and thirty girls in a room, the ratio of boys to girls is 1:3, or one to three.
  1. In 1978 there were 884 students at a lecturer/student ratio of 1:15...
     1978年有884名学生，师生比为1比15。
  2. The bottom chart shows the ratio of personal debt to personal income...
     下面的图表显示了个人负债与个人收入之比。
  3. The adult to child ratio is 1 to 6.
     成人与儿童的比例为1比6。

英英释义

noun

• the relation between things (or parts of things) with respect to their comparative quantity, magnitude, or degree
  1. an inordinate proportion of the book is given over to quotations
  2. a dry martini has a large proportion of gin
  Synonym:proportion
• the relative magnitudes of two quantities (usually expressed as a quotient)

双语例句

• The low tension and gentle treatment is also ensured by the ratio metered AC drive.
  其速比控制的交流传动系统也确保了低张力和轻柔处理。
• Chemical reactions in urea-sulfuric acid system with different ratio of urea and sulfuric acid at various temperatures are studied.
  研究了硫酸尿素系统在不同配比和不同温度的化学反应。
• Under dark adaptation, phototactic ratio of round scad ( both juvenile-and adult) towards blue and green light is the highest, while that towards red light is the lowest.
  在暗适应条件下，蓝圆鲹幼、成鱼对蓝、绿色光的趋光率最高，对红光的趋光率最低。
• The ratio is becoming more balanced.
  比例关系逐渐趋于协调。
• Use one buffer pool, but increase its size until the index hit ratio stops increasing.
  使用一个缓冲池，但是增加其大小直至索引命中率停止增长。
• Catagensis is marked by a loss of hydrogen, and consequently by a decrease of the h/ c ratio.
  后生阶段以氢减少必然导致h／d比率降低为特征。
• The ratio ( in percent) of the maximum width the the maximum height of the face.
  面部最大高度和最大宽度的比率。
• The mass ratio of PBA to PEDA which affects polyurethane property was studied.
  分析了PBA和PEDA的质量配比对合成的聚氨酯性能的影响。
• The adult to child ratio is 1 to 6.
  成人与儿童的比例为1比6。
• The curve pattern showed that the ratio of dark-respiration to photorespiration increased at first and decreased later on.
  暗呼吸及光呼吸速率与叶水势降低的关系，呈现先升高而后下降的曲线类型。