Warning: file_put_contents(/www/wwwroot/zidian/biehu.cn/cache/710a984408cea4c98b15d63769151751.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/biehu.cn/index.php on line 58 Dushanzi例句_Dushanzi英汉例句_Dushanzi双解例句_甲百汇小鸡词典
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。