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1 soil-ulmin
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2 soil-ulmin
Геология: гумус, почвенный ульмин
См. также в других словарях:
ulmin — mə̇n noun ( s) Etymology: Latin ulmus elm + English in : any of a group of brown to black organic substances found especially in soil, peat, or coal and obtained artificially by the action of various reagents on sugars … Useful english dictionary