metathesis

英 [məˈtæθəsɪs]      美 [mɪˈtæθɪsɪs]
  • n. 音位转换;置换作用;交换;[医] 病变移植
metathesis
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metathesis (n.)
1570s, "transposition of letters in a word;" c. 1600, "rhetorical transposition of words," from Late Latin metathesis, from Greek metathesis "change of position, transposition, change of opinion," from stem of metatithenai "to transpose," from meta- "to change" (see meta-) + tithenai "to place, set" (see theme). Plural is metatheses. Related: Metathetic.
1. 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.
2. 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.
3. 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.
4. Recent advances in ring closing metathesis ( RCM ) reaction, including olefin and enyne metathesis reaction are reviewed.
综述了近几年来关环复分解 ( RCM ) 反应的研究新进展, 包括了烯烃、烯-炔的RCM反应.
5. Studying the sol - thermal and chemical metathesis synthesis of nanomaterial powder is the main task.
在课题研究期间,分别对溶剂热合成和化学交换法进行了研究与应用.

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