vade mecum vade vacuumtube n.電子管vacuumtight adj.真空密閉的vacuumservo adj.真空伺服的vacuums n.真空；真空吸塵器；空白adj.產(chǎn)生（利用）真空的v.用吸塵器打掃vacuumpump n.真空泵vacuummeter n.真空計(jì)vacuumlead 抽真空管道vacuumizing 真空操作vacuumize vt.造成真空(真空包裝；用真空裝置弄干)vacuuming n.真空處理動(dòng)詞vacuum的現(xiàn)在分詞.vacuumgauge n.真空計(jì)vacuumes n.真空；真空吸塵器；空白adj.產(chǎn)生（利用）真空的v.用吸塵器打掃vacuumed n.真空；真空吸塵器；空白adj.產(chǎn)生（利用）真空的v.用吸塵器打掃vacuumdesicator n.真空干燥器vacuumdegree 真空度vacuumbrake n.真空增力制動(dòng)閘vacuumbottle n.熱水瓶vacuumbaking n.真空烘焙法