液体从系统中被排出时，系统压力降低，直到在弹簧压力作用下阀门回复原位。

As fluid is released the system pressure decreases until the spring force re-seats the poppet.

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液体从系统中被排出时，系统压力降低，直到在弹簧压力作用下阀门回复原位。

As fluid is released the system pressure decreases until the spring force re-seats the poppet.

youdao