Studies showed that crumb rubber powder could improve the roadperformance of asphalt.

而已有的研究表明废胶粉能改善沥青的路用性能。

youdao

Studies showed that crumb rubber powder could improve the roadperformance of asphalt.

而已有的研究表明废胶粉能改善沥青的路用性能。

youdao