综述间规聚丙烯复杂的多晶型现象以及各晶型的结构特点。
The complex polymorphism and the structural characteristic of various crystal forms are reviewed in syndiotactic polypropylene.
晶间非晶相的微结构不同于完全非晶，并随淬速的变化而改变。
The microstructure of the intergranular amorphous phase is different with that of the complete amorphous.
根据现代关于晶间界面的研究可知，晶界和相界多具有二维周期结构。
According to the recent studies on interfaces in crystals, it is evident that most grain boundaries and phase boundaries have two dimensional periodic structures.
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