humic degradation matter的意思|示意

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腐植煤质

褐色物质 brown matter 腐殖分解物质; 褐色物质 humic degradation matter 腐植煤质; 褐色物质 organic matter degradation 有机物降解作用 .

腐植煤质 ... 腐植煤系 saprohumolith series 腐植煤质 humic degradation matter 腐植泥 sapropel ...