基本解释[物理學]前級真空泵英汉例句雙語例句This Model Vacuum Pump can be used along, or as the backing pump of the other kinds of pumps, such as booster pump, diffusion pump, molecular pump etc.它可以單獨使用， 琯道泵也可作爲增壓泵、擴散泵、分子泵的前級泵使用。backing vacuum pump更多例句词组短语短語vacuum backing pump 真空鏇轉泵backing vacuum pump更多词组专业释义物理學前級真空泵