The application of regeneration bitumen pavement material in road roots is an effective way to solve the disused pavement material during the reconstruction of bitumen concrete road.
再生旧沥青路面材料在道路基层中的应用是解决沥青混凝土道路改建时产生的废弃路面材料的一个有效途径。
Bitumen forms from kerogen during petroleum generation.
在石油生成期间，由于酪根形成沥青质。
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