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 arc真空电弧
vacuum pot真空锅
vacuum oil真空油
vacuum cap真空罩
vacuumpumpn.真空泵
vacuum car淘粪汽车
vacuum jar真空瓶
vacuum box吸水箱,真空箱
vacuum pan真空盘,真空锅
vacuum fann.真空风扇