Mechanism of the main reaction has been discussed.

文中对反应的主要机理进行了讨论。

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The main reaction mechanism was determined by XRD and TG-DTA analysis.

通过XRD, TG - DTA分析确定了合成反应的主要历程。

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The procedure of synthesis is presented concisely with main reaction variables given.

简介了合成过程，给出了主要的合成参数。

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Most other Asian stock markets were down sharply, a reaction to word that Dubai's main investment arm is having trouble servicing its debt.

VOA: standard.2009.11.27

Indeed, the main reaction I've heard to Blockbuster's bad news today is surprise that it has kept trading this long, and doing so out of 528 stores.

BBC: Blockbusted

When the plan was unveiled yesterday to the public, there was some opposition, but the main reaction, such as that from community activist Karran Harper Royal, was skepticism.

NPR: New Orleans Releases Plan for City's Schools

"My main emotional reaction is pride, " he said.

CNN: The agony and ecstasy of the National Spelling Bee