甾体的溶解是微生物转化反应的控制步骤。

The dissolution of substrate is the key step in steroid microbial conversion.

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因此，对催化烃转化反应的双功能催化剂的研究就显得十分重要。

Therefore, the study on bifunctional catalysts and their application in alkane conversion is necessary.

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提出了乙烷与水蒸汽转化反应的新化学计量方程序，对已有的反应机理作了补充，指出甲烷同系物的水蒸汽转化与其加氢裂解反应的相似本质。

A new chemical equation for the reaction of ethane with steam is suggested. It is pointed out that the steam conversion is similar to hydrocracking of methane homologs.

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And what it's used is to convert one type of group, what's called a carboxylic acid into another type of very reactive intermediate, which is called an acid chloride.

它被用来将一类被称作羧酸的化合物，转化成另外一类活性很高的反应中间体,也就是酰氯。

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It gets produced in response to a signal so there's a binding of a ligand to a receptor, the enzyme that does this conversion is activated and more cycle AMP is released.

这类分子的产生是对信号做出的一种反应,当配体和受体结合时,催化这种转化过程的酶被激活,更多的cAMP释放出来

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