road asphalt

基本解释

The domestic production of road asphalt has been increased rather fast in recent years.
我国的道路沥青生产近年来发展较快，但在数量特别是质量方面还不能满足需要。
Two methods for forecasting the quality of road asphalt with the data of crude assay are proposed.
提出两种方法，在溶剂脱沥青过程之前用原油评价数据预测道路沥青质量。
Production technologies for high grade road asphalt from residues of middle Saudi Arab and Kuwait crudes were developed by Qilu Company, China Petroleum and Chemical Corporation and FRIPP.
中国石油化工股份有限公司齐鲁分公司与抚顺石油化工研究院合作，以沙特中质和科威特原油的渣油为原料，开发了制取高等级道路沥青的工艺技术。

One such material is asphalt, a substance often placed on top of buildings and used to cover road surfaces.