Daniel Sigman: Algae require nitrogen to grow, and their bodies, in turn, fuel the rest of the ocean food web.
丹尼尔·西格曼:海藻生长过程中需要氮,而海藻本身为海洋食物链中的其他生物提供养分。
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The plan was for OCO's measurements to be synchronised with an analysis of ozone, nitrogen dioxide, methane and other greenhouse gases by the rest of the fleet.