英语词汇nitrogen cycle怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	nitrogen cycle
释义	nitrogen cyclen. Ecol. the series of processes by which nitrogen is absorbed from and returned to the atmosphere by biological systems, including nitrogen fixation and decomposition 【态】氮循环
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