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示踪化合物
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示踪化合物
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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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first boundary condition
first boundary value problem
first Brillouin zone
first Brocard Cevian triangle
first Brocard circle
first Brocard point
first Brocard triangle
First Bulgarian Kingdom
first capacity fading
first category
first category set
first cementing interface
first characteristic polynomial
first Chern class
First Child-Birth Ceremony
first-class current
First Collection of Rare Books from Complete Library of Four Treasuries
First Collection of Writings on Heavenly Learning
first collision probability
first-come first-served
first comparison test
first compilation
first complementary law
first component
first condensate
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