Should a valve need repair, depressurize and drain the system on both sides of the valve.
如果一个阀门需要维修,则在阀门的两侧对系统进行减
和排放。
,使

态: depressurized, depressurizing, depressurizes Should a valve need repair, depressurize and drain the system on both sides of the valve.
如果一个阀门需要维修,则在阀门的两侧对系统进行减
和排放。
Always depressurize a regulator before closing the adjusting knob and removing the regulator from the cylinder.
在关闭调整钮和从钢瓶
断开调整器之前,总是使调整器减
。
声
:

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