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胡敏素
释义
胡敏素
Encyclopedia
农学
土壤有机质
释
humin; HM
胡敏素
土壤和海洋沉积物中不溶于水、稀酸、稀碱、有机溶剂的有机高分子化合物。是腐殖物质中与土壤矿物结合最紧密的组分。又称黑腐素。
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elliptic orbit
elliptic parabola
elliptic-parabolic
elliptic-parabolic equation
elliptic-parabolic motion
elliptic paraboloid
elliptic paraboloid of revolution
elliptic partial differential equation
elliptic pencil
elliptic pencil of circles
elliptic pencil of lines
elliptic pencil of rays
elliptic pencil of spheres
elliptic plane
elliptic point
elliptic polarization
elliptic polynomial
elliptic pseudo-distance
elliptic pseudoprime
elliptic quadratic hypersurface
elliptic quadratic surface
elliptic rational function
elliptic ray
elliptic region
elliptic restricted problem
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