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forepumping是什么意思，forepumping的翻译，forepumping音标、读音、用法和例句_按摩法牛津词典
按摩法牛津词典

forepumping

F 开头单词

基本解释

  • n.前級抽氣(預抽)

同根派生

     

英汉例句

  • Keywords vacuum reaction stove;vacuum degree;master pump;forepump;smelting;modification;
    真空感應爐;真空度;主泵;前級泵;熔鍊;改造;
  • mechanical forepump
    機械預抽真空泵
  • forepump
    n. 預抽真空泵(前級泵)
  • vacuum forepump
    前置真空泵