Reciprocating pump discharge pipe must be before the start of the valve to open.
往复泵启动前必须将排出管路中的阀门打开。
The discharge of harmful gas into open air is dangerous.
将有害气体释放到空气中是危险的。
Air lock and dust discharge valve open or close in turn up and down.
锁气翻板卸灰阀为上下交替开闭，自动复位机构。
Air lock and dust discharge valve open or close in turn up and down.
锁气翻板卸灰阀为上下交替开闭，自动复位机构。
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