沥青
近义词与同义词
按词义分组列出，使用时请结合具体语境。
mixed asphalt and crushed gravel or sand; used especially for paving but also for roofing
a dark bituminous substance found in natural beds and as residue from petroleum distillation; consists mainly of hydrocarbons
基本解释
有机化合物的混合物，黑色或棕黑色，呈胶状，有天然产的，也有分馏石油或煤焦油得到的。用来铺路面，也用做防水材料、防腐材料等。通称柏油。