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 purification真空净化
vacuum tube checker电子管测试器
vacuum pipe-still[化] 减压管式蒸馏装置
vacuum cylinder oil真空气缸油
vacuum suction roll真空吸辊
vacuum strap filter真空带式过滤机
vacuum core sampler真空采样器
vacuum polarization真空极化
vacuum inpregnation真空浸渍
vacuum freeze dried真空冷冻干燥