This valve is often located at the top section of the car engine system.
这种阀门通常是位于第一段的汽车引擎系统。
A valve on the engine for reducing pressure in the compressor section.
发动机上，用来降低压气机压力的活门。
Therefore each line or line section shall have an expansion chamber a pressure relief valve or rupture disc discharging to a receiver.
各管路或管段应配备膨胀室，减压阀或将压力释放到储气罐的爆破隔膜。
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