From the point of view of the pavement maintenance, the evaluation of class of the pavement condition is a very important subject.
从路面养护的观点出发，如何评定路况的等级是一个很重要的问题。
From the point of view of the pavement maintenance, the evaluation of class of the pavement condition is a very important subject.
从路面养护的观点出发，如何评定路况的等级是一个很重要的问题。
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