Dushanzi

常見例句

• 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(shè)計(jì)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(duì)獨(dú)山子鍊油廠的瀝青進(jìn)行了改性。
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