Warning: file_put_contents(): Only 0 of 7591 bytes written, possibly out of free disk space in /www/wwwroot/ndsq.cn/index.php on line 55 Dushanzi是什么意思，Dushanzi的翻译，Dushanzi音标、读音、用法和例句_开心英文字典_柠咚词
Dushanzi asphalt was modified by blending resin and rubber polymers.The experiments of polymers blending ratios were arranged by uniform design method. 采用均匀设计法安排试验，通过加入不同比例的树脂类聚合物及橡胶类聚合物对独山子炼油厂的沥青进行了改性。