1·The best way to represent the isotactic structure is with molecular models.
表示等规结构的最好方法是用分子模型。
2·The effect of properties of isotactic polypropylene on Chloridizing reaction and Basic Characteristic of Chloridizing reaction are discussed.
探讨了等规聚丙烯原料性质对氯化反应的影响，同时研究了氯化反应的基本特征。