1) travel brake valve

行车制动器阀
2) travel brake control valve

行车制动器控制阀
3) service brake valve

行车制动阀
4) service brake bleed valve

行车制动器排放阀
5) pedal operated service brake valve

踏板操纵行车制动器阀
6) service brake valve port

行车制动阀孔口
参考词条