浮子室通气孔的效用是补偿空气滤清器阻塞的影响。
The purpose of the float-bowl vent is to equalize the effects of a clogged air cleaner.
但是，过滤性能再强的滤清器，由于它很容易阻塞，最后仍需经常更换。
However, no matter how good the filtering performance, filters end up needing to be replaced often as they become clogged easily.
现在，我们比较一下丰田汽车原装空气滤清器与假冒伪劣产品在阻塞以前的过滤性能和使用寿命，以及衡量质量标准的主要因素。
Now let us compare TOYOTA genuine air filters against counterfeit air filters as their filtering performance and life up until they clog.
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