1) secondary brake pilot valve
辅助制动器先导阀
2) secondary pilot valve
辅助先导阀
3) secondary brake ball check
辅助制动器球阀
4) brake pilot valve
制动器先导阀
5) secondary brake valve
辅助制动阀
6) secondary brake control valve
辅助制动器控制阀
参考词条