Polymorphism in elements is called allotropy . 把元素中的多晶现象称为同素异构性。
A rather more complex case is that of steric isomerism . 更复杂的情形是立体异构问题。
Stereoisomerism is encountered in the homologous series . 在同系列中存在立体异构现象。
The term "stereoisomerism" however, is generally restricted to mirror image isomerism . 然而“立体异构”一词通常只限于镜象异构。
Isomeric alcohols, tertiary amines are less water soluble than their isomeric primary and secondary amines . 异构的醇，叔胺的水溶性比其异构的伯胺和仲胺小。
Isomeric alcohols, tertiary amines are less water soluble than their isomeric primary and secondary amines . 异构的醇、叔胺的水溶性也比其异构的伯胺和仲胺小。
Isomeric alcohols, tertiary amines are less water soluble than their isomeric primary and secondary amines . 异构的醇、叔胺的水溶性也比其异构的伯胺和伸胺小。
To illustrate some of the features of the equilibrium phenomenon, let us look at the reaction in which cyclobutene is isomerized to 1.3-butadiene . 为了说明平衡现象，让我们看一下环丁烯异构成13一丁二烯的反应。
Data exchange of different databases using xml 技术实现异构数据库之间的数据转换
Heterogeneous database integration research on java and xml 的异构数据库集成研究
