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？

youdao

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？

youdao