servo-valve control device

... servo control valve spool 伺服机构控制滑阀 servo-valve control device 伺服阀控制装置 control servo valve 自动控制伺服阀 ...

 valve control device

... 工业上称其为阀位控制 valve position control 伺服阀控制装置 valve control device 导阀控制的 pilot operated ...