A large number of structures of benzene methyl and methylene groups but rare aralkyl ether linkage existed in the waste liquor.
两种废液木素中都含有大量的苯环及甲基、亚甲基,乎不存在烷基芳基键;
A large number of structures of benzene methyl and methylene groups but rare aralkyl ether linkage existed in the waste liquor.
两种废液木素中都含有大量的苯环及甲基、亚甲基,乎不存在烷基芳基键;
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