There are free, adsorbed and dissolved states a total of three forms of existence in coal quality low-molecular-weight compounds by speculation, and free state and adsorbed easily are extracted, but total dissolved state can not easily be extracted.

  • 推测煤中低分子质化合物有游离态、吸附态和共溶态三种存在形式,游离态和吸附态易被萃取,而共溶态不易被萃取。

  • 互联网摘选 2025-01-20 12:31:51

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