压紧制动器工作控制
compression brake operation control
变速箱制动器压力
transmission brake pressure
停放紧急制动压紧能力测试
parking secondary brake holding ability test
停放制动器压力开关
parking brake pressure switch
停放制动器压力开关回路
parking brake pressure switch circuit
液压制动器操作
hydraulic brake operation
液压制动器储油罐
hydraulic brake reservoir