Therefore we propose that pure isotactic PAN, the chain conformation would adopt the nearly, but not exactly, 3i helical structure; While assuming pure syndiotactic PAN, the chain would adopt roughly zigzag conformation.
且与实验结果相比较，最终得出了聚丙烯腈的构象结构为:全同结构的聚丙烯腊以螺旋状为其优势结构，间同的聚丙烯睛以锯齿形的结构为其优势构象。
参考来源 - 聚丙烯腈的分子结构·2,447,543篇论文数据，部分数据来源于NoteExpress
那么你当然需要说明，这种方式和所有分子，都是全同的结果的差别。
So of course you need to account for that in a way that's different from how it turns out if every one of the molecules is identical.
这3胞胎属非全同基因，6周前在诺丁汉女皇医学研究中心经剖腹产出生。
The babies, who are non-identical, were delivered by caesarean six weeks early at Queen's Medical Centre in Nottingham.
如果原子是相同的，换句话说，如果我们有一摩尔全同的物质，我们没有办法区分这两种情况。
If the atom's are identical, in other words, if it's a mole of the same stuff, I don't have a way of distinguishing between those two.
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