laap6
    ceng1
    编辑拼音edit jyutping

    沥青。一类有机胶凝材料。包括天然沥青、石油沥青和煤焦油沥青等。主要由碳氢化合物组成,也含有少量的氧、硫或氮的化合物。色黑而具光泽,呈液体、半固体或固体状态。粘结性,抗水性和防腐性良好。常用于铺筑路面,作为防水及防腐材料,也用作制造炭素材料的原料等。

    编辑解释edit jyutping

    asphalt

    编辑英文解释edit jyutping


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