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- Definition of contact ratio of paired gears generated with sinusoidal rack and its calculation formula were given, and the effect of related design parameters on the contact ratio was also discussed. 摘要提出正弦齿条所生成的齿轮副的重合度定义及其计算式，并且讨论有关设计参数对于重合度的影响效果。
- The ratio of students to teachers is 35:1. 学生和老师的比率是三十五比一。
- The ratio of schoolboys to schoolgirls is 2 to 1. 男学生和女学生的比例是2比1。
- Men outnumber women here in the ratio of three to one. 此地男子数量以三比一超过女子。
- The point of contact of two abutting objects or parts. 接合点，结合器两物或两部分相接的那一点
- The ratio of men to women was two to one. 男女的比例是二比一。
- I have is out of contact with her for three year. 我与她失去联系已有三年。
- Output two teams of contact signal. 输出两组触点信号。
- He confessed himself out of contact with the times. 他承认自己与时代脱节。
- The strike is the ultima ratio of Trade Unionism. 罢工是工联主义的最后手段。
- I left a message so as to be sure of contacting her. 我留下了张条子以便与她取得联系。
- The ratios of 1 to 5 and 20 to 100 are the same. 1与5之比和20与100之比相同。
- This is the prime ratio of the nascent increments. 这是最初增量的最初比。
- I have been out of contact with her for three years. 我与她失去联系已有三年。
- Glory in all the facets of pleasure and beauty which the world reveals to you through the several means of contact which Nature provides. 所有的愉快和美感方面的天福，世界通过自然提供的几种接触方式将它展露给你。
- Compression ratio of the server input data stream. 服务器输入数据流的压缩比率。
- Compression ratio of the server output data stream. 服务器输出数据流的压缩比率。
- The opposing forces are now out of contact with each other. 敌对双方现已停止接触。
- Low utilization ratio of healthcare resources. 卫生资源利用效率不高。
- After-tax profit margin is the ratio of net income to net sales. 税後利润率指净收入与净销售之比。
