主阀

主阀 [zhǔ fá]

1. ■ king valve; main valve; master valve

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常用词组

1. ■ 主阀衬套 main valve bush; main valve bushing;

2. ■ 主阀大活塞 large main valve piston;

3. ■ 主阀大活塞环 large main valve piston ring;

4. ■ 主阀环 main valve ring;

5. ■ 主阀簧 main valve spring;

6. ■ 主阀小活塞 small main valve piston