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Terms for subject Explosives and Explosive Ordnance Disposal containing humic | all forms | exact matches only
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humic coal腐殖煤咼等植物遗体,在泥炭沼泽中经泥炭化作用和煤化作用转变成的煤
humic-sapropelic coal腐殖腐泥煤低等植物和高等植物遗体经成煤作用转变成的、以腐泥为主的煤
sapropelic-humic coal腐泥腐殖煤高等植物和低等植物遗体经成煤作用转变成的、以腐殖质为主的煤