异构(heterogeneous,来自中世纪拉丁文 heterogeneus,来自希腊语 heterogenēs ),即由不同的元素或部分组成,不均匀的意思。
对相转移催化合成2-戊叉环戊酮及其异构化的条件进行了研究。
The synthetic conditions of 2-pentylidene cyclopentenone using PTC were stud-ied, and the conditions of isomerization were also studied.
它们将经历一个称为互变异构的过程。
磷酸丙糖异构酶的结构复杂。
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