What is assimilation, dissimilation and metathesis?

什么是同化、异化和换位？

Reduction - metathesis method for preparation of strontium carbonate from celestite is developed.

提出还原- 复分解法制备碳酸锶的新工艺。

In addition syllable metathesis within a word prefers the interchange between stressed syllable and an syllable.

而且，同一个字内常见一重一轻的音节互换，少有二个非重音节互换。

The mechanism of C_4-olefin metathesis to produce propylene and the Re-based catalysts for the metathesis were introduced.

介绍了C_4烯烃歧化的基本原理以及歧化反应用负载型铼基催化剂。

Several kinds of ruthenium - catalyzed organic reactions were reviewed: hydrogenation, oxidation, isomerization, metathesis.

综述了钌催化剂催化的主要几类有机合成反应，包括氢化、氧化、异构化、复分解。