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- ventilation ratio area gauge 透气比面积仪
- This is a room with good ventilation. 这是个通风良好的房间。
- New international consensus on cardiopulmonary resuscitation Guidelines recommend CPR with a compression to ventilation ratio of 30:2 心肺复苏的国际新标准 指南推荐胸部按压/通气比为30:2
- 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。
- Seismic acquisition in the low signal-to-noise ratio area of the south step-fault zone in Gaoyou sag 高邮凹陷南断阶带低信噪比地区地震勘探技术
- 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
- area gauge 面积测量
- The ventilation is poor, the lieutenant admits. 中尉承认，通风设备很糟糕。
- Workers should be allowed full ventilation of all their difficulties. 工人们应被允许公开讨论他们所有的困难。
- The ratio of deaths in an area to the population of that area. 死亡人口数同本地区人口比率。
- Ventilation Ratio 通气比率
- 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。
- They altered the house to improve its ventilation. 他们把房子改装一下使它更通气。
- The ratio of men to women was two to one. 男女的比例是二比一。
- Regeneration production of ventilation fan. 换气扇的换代产品。
- Open the window for some ventilation. 打开窗子好通风。
- The ratio of the weight of an airplane to its wing area. 机翼同飞机重量的比率。
- Well ventilation, away from corrosive gas. 通风良好，不带有腐蚀性气体。
