vacuumpumpn.真空泵vacuumn.真空；真空吸尘器；空白adj.产生（利用）真空的v.用吸尘器打扫vacuum gage control circuit真空计控制电路vacuum release relief valve真空解除阀vacuum pressing and casting真空铸造,压铸vacuum X-ray spectrometer真空X射线分光计vacuum tube characteristics[电] 真空管特性vacuum-pressure processes真空加压法vacuum continuous drain bag连续抽吸引流袋vacuum assistance injection真空辅助压浆vacuum pressure die casting真空压铸vacuum measuring instrument真空测量仪表

1. 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。