Subgrade is the important part of the highway engineering and the base of the pavement.
路基是公路工程的重要组成部分，是路面的基础。
The water damage of bituminous pavement is a general quality problem of highway engineering.
沥青路面水损害问题是公路工程质量通病之一。
Subgrade is the important part of the highway engineering and the base of the pavement.
公路工程的重要组成部分，是路面的基础。
Subgrade is the important part of the highway engineering and the base of the pavement.
公路工程的重要组成部分，是路面的基础。
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