The salt water is passed through a series of chambers which have progressively higher vacuums and lower temperatures . 咸水流过一系列真空程度逐渐增高，温度逐渐降低的蒸馏室。
The sludge is passed under a vacuum pump and allows the water to pass through a discharge or recirculation drain . 用真空泵除去污泥的固体含量而该泥水则经排水渠或回流渠排出。
A vacuum pump pulled the products of combustion through the pipe and exhausted them outside at the end of the run . 一真空泵把燃烧的产物推进管子，在管道行程的末端将其释放掉。
He has lived in a vacuum for eighteen years, cloyed by the representative and unique longings of any youth . 他在真空中生活了十八年，腻味了年轻人那一套典型的、独特的向往和追求。
The advantage of vacuum oven is that lower drying temperatures are used which decrease the deterioration of the dry matter . 真空烘箱法的优点为采用较低的烘干温度，从而减少干物质的变质。
Uncontaminated water is normally used as seal water for vacuum pumps and for compressor cooling as well as for sanitary use . 未污染的水通常用作真空泵的密封水和压缩机的冷却水以及供保健用。
A vacuum pump pulled the products of combustion through the pipe and exhausted them outside at the end of the run . 有一个真空泵把燃烧的产物推进管子，在管道行程的末端外面使这些产物彻底烧尽。
