直接驱动阀控制致动器
direct drive valve controlled servo actuator
手动伺服控制阀
manual servo control valve
防滑转制动控制开关
antispin brake control switch
转盘控制阀控制
swing control valve control
转向和制动控制阀
steering and brake control valve
电动液压伺服控制阀
electro-hydraulic servo-control valve
斗杆控制阀控制部分
stick control valve control section
减速器制动控制阀
retarder brake control valve
离合器和变速箱制动控制阀
clutch and transmission brake control valve