Automobile brake system most is double pipeline vacuum booster, which relay system hydraulic braking power brake fluid strong absorbent.
汽车制动系统绝大多数是双管路真空助力液压制动，其中传递制动力的制动液有极强的吸水性。
2
Existing electric locomotive air brakes of Shao Shan types are mostly used DK-1 model electric-air braking machine as control component, its core is to adopt the relay and touch logic control.