此类阀门适用于压力、真空装置。
用于压力和真空装置。
通常还有一个真空装置，用于检查真空点火提前装置的工作情况。
In addition, they usually have a vacuum device to test the operation of vacuum-advance mechanisms.
本装置也可在真空情况下操作。
以此为依据，建成了真空物理模拟实验装置。
On such a basis, a vacuum physical simulated test equipment has been built.
并提出一种监测真空-堆载联合预压加固区内地下水位量测装置。
And create a new equipment to monitor the groundwater level in preloading area.
过滤装置的真空收集系统将管道系统中的污染物吸取出来，并进行收集。
Afilter system will suck out the stain in the conduit and collect together.
过滤装置的真空收集系统将管道系统中的污染物吸取出来，并进行收集。
Afilter system will suck out the stain in the conduit and collect together.
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