vacuumpumpn.真空泵
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 air sampling method真空气体采样法
vacuum-injection process真空注射法
vacuum multi-layer press真空多层压机
vacuum-pump power supply真空泵电源
vacuum distillation column真空蒸馏塔
vacuum-deposited circuit真空淀积电路
vacuum critical cryodrying真空临界低温干燥
vacuum-deposited coating真空镀敷法
vacuum fractionating tower真空分馏塔
vacuum cementation furnace真空渗碳炉