vacuum ratio

 
  • 真空度

vacuum ratio的用法和样例:

例句

  1. The pressure in the vacuum is too low.
    真空度太小。
  2. In this paper,a method of Vacuum measurement and calibration of vacuum interrupter will be introduced.
    详细介绍了一种真空开关管真空度测量及校准方法。
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