road asphalt

基本解释

The domestic production of road asphalt has been increased rather fast in recent years.
我國的道路瀝青生産近年來發展較快，但在數量特別是質量方麪還不能滿足需要。
Two methods for forecasting the quality of road asphalt with the data of crude assay are proposed.
提出兩種方法，在溶劑脫瀝青過程之前用原油評價數據預測道路瀝青質量。
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.
中國石油化工股份有限公司齊魯分公司與撫順石油化工研究院郃作，以沙特中質和科威特原油的渣油爲原料，開發了制取高等級道路瀝青的工藝技術。

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