... 固定氮法 nitrogen fixation process 生物固定的氮 The Biological Fixation of Nitrogen 固定化氮循环细菌 INCB ...
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For example, how many news articles have been written about nitrogen-fixation — the process by which plants can be made to "fix" their own nitrogen, thus reducing the need for fertilizer?
举例来说，有几篇新闻报道过固氮作用——这是使植物锁定自身的氮气，从而减少对化肥需求的过程？
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