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理学
示踪化合物
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示踪化合物
由污染源排放的,作为各类污染源排放的指示特征化合物。又称标记化合物。在污染源的识别以及源解析中起着关键作用。
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subquotient theorem
Subra
subradar point
subradical
subradular organ
Subrahmanyan Chandrasekhar
Subramaniam Lakshminarayana
subrange
subrank
subrecursive hierarchy
subrecursiveness
subreflector
subreflexive
subrefraction
subregion
subregular
subregular element
sub-regular solution
subregular unipotent element
subrelation
subrepresentation
subresonance
subresultant
sub-Riemannian geometry
sub-Riemannian manifold
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