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nitrogen cycle
释义
nitrogen cycle
Encyclopedia
理学
生物固氮
释
nitrogen cycle
自然氮循环
自然界中氮气和含氮化合物之间相互转化的过程。
理学
土壤微生物学
释
nitrogen cycle
氮素循环
自然界的氮及氮素化合物在生物作用下的相互转化过程。
Biology
nitrogen cycle
氮循环
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human centrifuge
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human coagulation factor Ⅷ determination
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