Hard asphalt used on thin overlay has a more significant technical features and economic advantages.
对于薄层罩面工程，采用硬质沥青混合料更具有显著的技术特点和经济优势。
In addition, combined with a large number of test road construction, the construction technology of hard asphalt of thin overlay were Summed up.
此外，结合试验路的修筑，总结出一套薄层罩面硬质沥青混凝土面层的施工工艺。
In addition, combined with a large number of test road construction, the construction technology of hard asphalt of thin overlay were Summed up.
此外，结合试验路的修筑，总结出一套薄层罩面硬质沥青混凝土面层的施工工艺。
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