变速箱转向离合器
transmission directional clutch
飞轮离合器和制动器控制阀组
flywheel clutch and brake control valve group
转向离合器总成安装
steering clutch assembly installation
转向离合器主动鼓
steering clutch driving drum
转向离合器轴内鼓
inner drum of steering clutch shaft
转向离合器油路
direction clutch circuit
directional clutch circuit