The research proved that the copolymer have very good pour point depressing effect on paraffin-basecrude oil. It is a new kind of pour depressor.
研究表明，该共聚物对某些含蜡原油有很好的降凝作用，是一种新型的原油降凝剂。
2
It has introduced the property of paraffin-basecrude and deeply researched technology of the construction asphalt number 10 that was prepared by paraffin-basecrude.