液力制动操纵阀
hydraulic brake operating valve
变速箱液压操纵阀
transmission hydraulic control valve
液压操纵阀
hydraulically operated valve
hydraulic efficiency operated valve
hydraulicefficiency operated valve
hydraulically-operated valve
倾斜操纵阀部分
tilt control valve section
控制活塞操纵阀的开启程度
positioning of piston operated value