| 1. | Polymorphism in elements is called allotropy .
把元素中的多晶现象称为同素异构性。 |
| 2. | A rather more complex case is that of steric isomerism .
更复杂的情形是立体异构问题。 |
| 3. | Stereoisomerism is encountered in the homologous series .
在同系列中存在立体异构现象。 |
| 4. | 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。 |
| 5. | 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。 |
| 6. | 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。 |
| 7. | 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。 |
| 8. | 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。 |
| 9. | Data exchange of different databases using xml
技术实现异构数据库之间的数据转换 |
| 10. | Heterogeneous database integration research on java and xml
的异构数据库集成研究 |
