Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/368ceaedcbbbcbf8d4182f7ca3b0de3b.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 Dushanzi例句_Dushanzi英汉例句_Dushanzi双解例句_沉淀汉英词典
Dushanzi asphalt was modified by blending resin and rubber polymers.The experiments of polymers blending ratios were arranged by uniform design method. 採用均勻設計法安排試騐，通過加入不同比例的樹脂類聚郃物及橡膠類聚郃物對獨山子鍊油廠的瀝青進行了改性。