parking brake system 的意思是___
举一反三
- Each vehicle must have two independent brake systems for safety. The main brake system is service brake system. The secondary is parking brake system.
- 盘式制动器的英文是( ) A: Parking brake B: service brake C: Disc brake D: drum brake
- One is service brake and the other is parking brake．
- 车辆制动中英文“parking brake ”指：（ ）
- brake system