主阀

• king valve
• main valve
• master valve
• primary valve

参考释义

主阀 [zhǔ fá]

• -
• 短语
  主阀衬套 main valve bush; main valve bushing
  主阀大活塞 large main valve piston
  主阀大活塞环 large main valve piston ring
  主阀环 main valve ring
  主阀簧 main valve spring
  主阀小活塞 small main valve piston