valvedv.给 ... 装阀adj.有阀的valven.瓣膜；真空管；阀门；电子管valve stroke气门升程,阀冲程,阀升程,气门行程Valve plates节流阀片valve needle阀针valve bounce阀跳Valve manage阀门管理valve's neckvalve gutter气门头端面切槽valve recess阀龛valve-less无阀电液伺服系统valve travel阀程

1. Slide the diaphragm assembly into the relief valve seat.
   将隔膜总成滑进到安全阀阀座内。
2. All valve seats and seat discs shall be replaceable.
   所有阀门阀座和阀座阀瓣应该是可更换的。