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、亚甲结,几乎不存芳键结;
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、亚甲结,几乎不存芳键结;
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