vacuum jet蒸汽抽空器
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 break valve真空破坏阀
vacuum spindle oil真空锭子油
vacuum chlorinator[医] 真空加氯器
vacuum sublimation真空升华
vacuum defoamation真空脱泡
vacuum prepackaged真空压浆
vacuum manipulator真空操纵器
vacuum measurement真空测量
vacuum-saturated真空饱和的
vacuum oven method(谷物) 真空炉测湿法