vacuum cap真空罩
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 generating wisdom虚实生白
vacuum ionization sensor真空电离传感器
vacuum degassing process[机] 真空除气法
vacuum negative pressure真空负压
vacuum-load preloading真空联合堆栽预压
vacuum double drum dryer双滚筒真空干燥器
vacuum clay slip blunger泥浆真空搅拌机
vacuum-drive gyroscope真空陀螺仪
vacuum cup holding device真空吸盘
vacuum-fusion technique真空熔融技术