1. liquid ring vacuum pump 
   液环真空泵
2. rotary plunger vacuum pump 
   滑阀真空泵
3. spontaneous breaking of vacuum 
   真空自发破缺
4. steam ejection vacuum pump 
   水蒸汽喷射真空泵
5. surface analysis in vacuum 
   真空表面分析技术

查看更多例句 相关情景会话

• 1. 洗涤滤液真空接受器
  监视接收机 wash filtrate vacuum receiver...洗涤滤液真空接受器 waste receiver tank pump...{n.}废液滞留箱泵,废液贮箱泵 watch receiver
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• 2. 监视接收机
  话频信号接收器 warning receiver...监视接收机 wash filtrate vacuum receiver...洗涤滤液真空接受器 waste receiver tank pump
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