花灯集英语字典

prepump

P 开头单词

基本解释

  • n.前级泵

同根派生

     

英汉例句

  • The design parameters of anodic protection coolers and the reason why to choose a prepump process are presented.
    介绍阳极保护浓硫酸冷却的设计参数,选用泵前流程的原因,重点讨论冷却水路的设计方案。
  • Note: ZJ type Roots vacuum pump can't discharge gases directly into the air,it should be equipped with a cowesponding prepump at operation.
    注：ZJ型罗茨真空泵不能直排大气，运行时需配备相应前级泵。