这个品牌的真空净化器是目前国际市场上最具有竞争力且销量最好的一款。
Vacuum cleaners of this brand are competitive in the international market and are the best - selling products of their kind.
卤水净化是真空制盐的一个重要生产环节。
Brine purifying is very important to productions of the vacuum salt.
为液体介质的真空脱气净化和真空干燥提供了理论数据。
Provides the theoretical data for the vacuum degassing purification and vacuum dry of liquid medium.
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