您要查找的是不是：
- pulse respiration ratio 脉搏呼吸比率
- Respiration is difficult at great heights. 在很高的高原上呼吸很困难。
- An unwanted false electronic pulse. 一种不希望有的假电子脉冲。
- Respiration becomes difficult at great heights. 在很高的地方呼吸就变得困难了。
- They made frequent checks on his respiration,pulse and blood. 他们经常检查他的呼吸、脉搏和血液。
- He knew the pulse of the nation. 他了解国民的心态。
- The air inhaled and exhaled in respiration. 呼吸的空气在呼吸中吸入和呼出的空气
- The doctor took my temperature and my pulse. 医生量了量我的体温和脉搏。
- The excitement quickened my pulse. 激动使我的心跳加快。
- The machine is operated by an electronic pulse. 这台机器由电子脉冲信号操纵。
- He knew the pulse of the people. 他了解人民的意向。
- 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
- temperature pulse respiration 体温、脉搏、呼吸
- Pul is a short form for pulmonary. 应该是肺部气体栓塞吧!
- Anomalous Pul mo nary Venous Drainage=? +肺静脉畸形引流=？
- He was using his accessory muscles of respiration. 他在用呼吸辅助肌进行呼吸。
- A gill or similar organ of respiration. 鳃鳃或类似的呼吸器官
