尤其汽车在多尘的道路上行驶时，情况确实如此。更换机油便可排除灰尘，使其不能损坏发动机。
This is particularly true when the car operates in dusty areas, changing oil flushes this dust out so that it cannot harm the engine.
我们在尘士飞扬的道路上颠簸，车子东拐西弯，以躲开那些大圆石。
As we bumped over the dusty track, we swerved to avoid large boulders.
了解上海市吴淞工业区及周边地区道路积尘中无机元素的污染状况。
To investigate inorganic element pollution status in road cumulated dust in Wusong industry and nearby areas.
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