Without a strong and stable subgrade there is no stable pavement.
没有坚固、稳定的路基就没有稳固的路面。
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。
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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