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词汇
free humic acid
释义
free humic acid
基本
例句
游离腐殖酸
The content of moisture, ash, total humic acid andfree humic acidof brown coal were analyzed, and the data of total acidic group, carboxy and phenolic hydroxyl group were given.
给出了各种原料煤腐植酸中总酸性基、羧基、酚羟基的分析数据。
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local post offices
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更新时间：2025/5/23 20:19:09