Thus, which we traditionally think of polyolefin polymers as a repeating pattern of a single monomer, in many cases more than one monomer is used to refine properties.

• 由于我们传统上认为聚烯烃聚合体只是单个聚合单体的重复形式，所以在很多情况下用不至一种的聚合单体来改良产品性质？