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
无电源控制阀门
automatic water valve without electrical power con
automatic water valve without electrical power control
闸门控制阀芯
apron control valve spool
油门锁控制阀
throttle lock control valve
斗杆控制阀控制部分
stick control valve control section
转盘控制阀控制
swing control valve control