laap6
    ceng1
    編輯拼音edit jyutping

    瀝青。一類有機膠凝材料。包括天然瀝青、石油瀝青和煤焦油瀝青等。主要由碳氫化合物組成,也含有少量的氧、硫或氮的化合物。色黑而具光澤,呈液體、半固體或固體狀態。粘結性,抗水性和防腐性良好。常用於鋪築路面,作為防水及防腐材料,也用作製造炭素材料的原料等。

    編輯解釋edit jyutping

    asphalt

    編輯英文解釋edit jyutping


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