degree of vacuum造句

• Degree of vacuum
  工作真空度
• The factors influencing the annoyance degree of vacuum cleaner noise was analyzed from the angle of subjective perception
  摘要主要从分析吸尘器产生噪声的原因，从主观感受角度分析噪声烦恼度对人产生影响的相关因素。
• Capacitance type pressure differential pressure transmitter has many forms that can used to measurement field for differential pressure , flow , gauge pressure , absolute pressure , degree of vacuum , liquid level and specific gravity
  电容式压力差压变送器有多种型式，可用于差压流量表压绝压真空度液位和比重的测量场合。