您要查找的是不是：
- frequency of valve operation 阀的操作次数
- We can often correlate age with frequency of illness. 年龄的大小往往与发病率有关。
- Dimension A, center of valve port to floor level. 尺寸A,阀门端口中心至地面的距离。
- No water flows downstream of valve. 阀门下游没有水流。
- Please adjust the lift of valve plate. 请调节阀门开度。
- A frequency of one million megahertz,10000?200Hz. 一百万兆赫(兹)频率，即10000?200赫(兹)。
- Lift out disc holder assembly from body of valve. 从阀体上取出阀瓣固定器总成。
- A frequency of one million megahertz,10 ?12?Hz. 一百万兆赫(兹)频率，即10??12?赫(兹)。
- Ball Port Options viewed from top of valve. 从阀门顶部观察球阀端口选项。
- The frequency of aberration by CGH was 60%(12/20). 20例淋巴瘤患者CGH核型异常检出率为60%25。
- Upper and Lower Bushingsare standard for smooth valve operation. 上部和下部衬套对于阀门顺利操作是标准配置。
- Failure position of valve shall be closed. 故障时阀门位置为关闭.
- The frequency of the test tone was 300 Hz. 测试声为300赫。
- Type of valve - gate, globe, check, etc. 阀门的类型:闸阀,截止阀,止回阀,等等。
- A frequency of one million megahertz,1012Hz. 一百万兆赫(兹)频率，即1012赫(兹)。
- Size and length of valve being replaced. 需要更换的阀门的通径和长度。
- The frequency of EAA is increasing gradually. 避免抗原是治疗的关键,糖皮质激素疗效明显。
- P is the frequency of the most common allele. 代表最常见等位基因的频率。
- To avoid water damage due to valve operation, a drain pipe must be installed. 为了避免由于阀门运行所造成的水破坏，必须安装排泄管道。
- Frequency of opening and closing. 频繁的开启和关闭。
