讓那些心理陰暗的人發抖去吧。如同那篇讓乙醛脫氫酶突變基因攜帶者們(喝酒立刻臉紅的中國人)遠離酒,我的文章可以讓那些在高速路上碰到汽車突然死火或突然加速的人明白了刹車與真空的關係,便可救命。很多人在高速路上發動機突然死火,前邊又趕上了突然減速,慌張張踩刹車、鬆開、再踩、再鬆開,把真空放掉後車子再也刹不住了,
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This is not correct.
真空is functioned to release break, not to apply break. If you have a soft break, such as air in the system, you have to pump a few times to apply break.