和乙醇一样，丁醇也属于醇类，这说明每一个丁醇分子包括一个氧原子和直链烷烃里的那种碳原子、氢原子。
Like ethanol, butanol is an alcohol. That means each of its molecules contains an oxygen atom as well as the carbon and hydrogen found in an alkane.
所以，丁醇释放的能量比同样重量的乙醇多，在特性是它更像直链烷烃分子；它也不像乙醇那么容易吸水。
That gives butanol more energy for a given mass and makes it more alkane-like in its properties; nor does it absorb water as readily as ethanol.
纤维素中直链葡聚糖分子由氢键连接在一起。
The linear glucan molecules of cellulose are bound together by hydrogen bonds .
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