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- 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 first or last term of a ratio or a series. 首项，末项比率或数列中第一个或最后一个项
- peripheral ratio 缘速比
- Peripheral lymph nodes may be enlarged. 外周淋巴结可能增大。
- To release a peripheral that has been attached. 把已联接的外围设备释放。
- A connection point for a peripheral device. 外部设备的连接点
- 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。
- The ratio of men to women was two to one. 男女的比例是二比一。
- To transfer(data)to a peripheral device. 下载把（数据）转移到外转设备
- Which peripheral equipment do you require? 需要何种外附设备?
- Hard grade for low peripheral speed. 周速度低时用硬的结合度。
- The interval between any two frequencies having a ratio of2 to1. 倍频程频率比率为2比1的两个频率的间隔
- Soft grade for high peripheral speed. 周速度高时用软的结合度。
- What is peripheral vascular disease? 什么是周围血管疾病?
- DNA was extracted from peripheral blood leukocytes. 采集血液样本并提取白细胞和基因组脱氧核糖核酸（DNA）。
- Peripheral blood was sampled prior to bronchoscopy. 在支气管镜检查前抽取外周血样本。
- The strike is the ultima ratio of Trade Unionism. 罢工是工联主义的最后手段。
- To transfer(data) to a peripheral device. 下载把（数据）转移到外转设备
