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 modulator pressure真空控制液压
vacuum hydro-extraction真空萃取
vacuum flash vaporization真空闪蒸
vacuum-chamber aperture真空室孔径
vacuum lightning arrester真空避雷器
vacuum filtration process真空过滤过程
vacuum ionization chamber真空电离室
vacuum float zone crystal真空悬浮区熔晶体
vacuum integrated circuit真空集成电路
vacuum method of drainage真空排水法