1) parking brake on/off valve
停放制动器通/断阀
2) parking brake ball check
停放制动器球阀
3) parking brake valve
停放制动器阀
4) parking brake valve spool
停放制动器阀滑阀
5) parking brake bleed valve
停放制动器放泄阀
6) parking brake release valve
停放制动器松放阀
参考词条