电动阀门控制器
electric valve con- troller
电动控制阀门
electro motion control valve
手动流量阀门控制手柄
manual flow gate control handle
自动制动油路阀门接头
auto brake fluid valved nipple
自动制动油路阀门连接器
auto brake fluid valved coupler
并列式双腔气制动阀
parallel dual-chamber air brake valve
串列式双腔气制动阀
series dual -chamber air brake valve
单腔气制动阀
single-chamber air brake valve