拆下制动助力器盖。
制动助力器采用真空泵把你的脚作用在主缸上的力放大。
The brake booster USES vacuum from the engine to multiply the force that your foot applies to the master cylinder.
本实用新型涉及的是汽车底盘制动系统部件结构的改进，特别是涉及到一种真空助力器带制动主缸储液罐。
The utility model relates to an improvement on the component structure of the chassis braking system of vehicle, in particular to a vacuum booster band brake master cylinder fluid reservoir.
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