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 quantometer真空冲击电流计
vacuum flight path真空飞行弹道
vacuum pumping mud真空吸浆
vacuum switch tube真空开关管
vacuum servo brake真空补充制动器
vacuum distilation真空蒸馏
vacuum pasteurizer真空巴氏杀菌器
vacuum relay valve真空继动阀,真空式自动转换阀门
vacuum power shift真空换挡
vacuum type filter真空过滤机