V 開(kāi)頭單詞
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