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

1. The brine decontamination is very important to vacuum salt production and this paper had made descriptions for the methods of brine purification.
   卤水净化是真空制盐的一个重要生产环节，该文针对石膏型卤水的处理提出了对卤水净化的一些看法，供盐业同仁讨论。