1) parking brake ball check
停放制动器球阀
2) parking brake valve
停放制动器阀
3) parking brake valve spool
停放制动器阀滑阀
4) parking brake bleed valve
停放制动器放泄阀
5) parking brake release valve
停放制动器松放阀
6) parking brake quick release valve
停放制动器快速松放阀
参考词条