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單詞乎

nitrogen cycle

nitrogen cycle是什么意思、nitrogen cycle怎么讀

nitrogen cycle漢語翻譯

【醫(yī)】 氮循環(huán)

nitrogen cycle英語解釋

名詞 nitrogen cycle:

  1. the circulation of nitrogen; nitrates from the soil are absorbed by plants which are eaten by animals that die and decay returning the nitrogen back to the soil
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