同时，应进一步提高制动器的制造精度，从而限制踏板行程的“非正常”增长，满足双管路制动系统的使用要求。
Meanwhile, the manufacturing precision of the brake should be further improved to limit the non-nor-mal increase of braking pedal travel in order to meet the operation requirements.
双管路液压制动系统带真空助力。
双管路气制动系统，带驻车制动、排气制动。
Braking system double pipe air brake system, parking brake, exhaust brake.
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