;
;The method and the condition of separation epoxy ethane from dihydric alcohol are discribed.
介绍了环
乙烷与二元醇的分离方法和条件。
乙烷The method and the condition of separation epoxy ethane from dihydric alcohol are discribed.
介绍了环乙烷与二元醇的分离方法和条件。
There is more methane,ethane, isobutane and isopentane in shaly limestone than in marlite.
泥灰岩比纯灰岩所产
含有更多的甲烷、乙烷、异丁烷和异戊烷。
The oxidative dimerization of aryl methanes in organic solvents by using alkaline catalysts is an important way to prepare diphenyl ethanes and diphenyl ethylenes.
芳基甲烷在有机溶剂介质、碱催化下的化缩合反应,是合成二苯乙烯(烷)类化合物的重要途径.
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