Cleaning a dirty air filter can save 350 pounds of carbon dioxide a year.
清空肮脏的空气滤清器一年可以省下三百五磅的二氧化碳。
Another cause of improper engine idling can be dirty or plugged air filter in the bottom of the charcoal canister.
发动机怠速不正常的另一个原因是活性炭罐底部的空气滤清器脏污或被堵塞。
Air filters with good filtration capabilities usually get dirty faster, meaning that it's doing a good job at filtration, whilst a filter with less filtration capabilities would stay cleaner longer.
空气过滤器有良好的过滤能力通常会弄得很脏得更快，这意味着它是在过滤做一份好工作，而一个过滤器过滤能力保持干净少了。
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