英语语法分析

Isomerized gasoline is the cleanest high-octane gasoline component, which is free of sulfur, olefin and aromatics.

异构化汽油不含硫、烯烃及芳烃，是最洁净的高辛烷值汽油组份。

However, the yeast can be used to ferment xylulose, an isomerized product of xylose, to ethanol with high yield and efficiency.

但是，这种酵母能发酵木酮糖为酒精，产率和转化率都很高。

To illustrate some of the features of the equilibrium phenomenon, let us look at the reaction in which cyclobutene is isomerized to 1.3-butadiene.

为了说明平衡现象，让我们看一下环丁烯异构成1．3一丁二烯的反应。