vacuum booster

基本解释

Double pipe with hydraulic brake system vacuum booster.
双管路液压制动系统带真空助力。
The shape of the front crust of the car vacuum booster is complex and it needs many working steps to achieve the part.
介绍了汽车真空助力器前外壳成形工序和切舌模具，论述了模具结构特点和工作原理。
The rules of the last balance position is illuminated, and also the way how does the characteristic curve of the vacuum booster reflect the backing velocity of it is presented.
同时，给出了真空助力器的特征曲线是如何反映助力器回程速度的方法。