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1. This article presents the production of the foliage fertilizers of humic acid from weathered coals and its application.
   介绍以贵州风化煤为原料，生产腐植酸多元复合肥的生产方法及应用前景。
2. Thebinder of humic acid sodium obtained from wethering coal is used for briquetting fine coke producing on the vertical oven.
   本文介绍了从风化煤中提取腐植酸钠作粘结剂用于直立炉粉焦成型制气。