Carbon dioxide is a source of plant food.
二氧化碳是植物食物的来源。
Photosynthesis creates plant matter out of carbon dioxide and water.
光合作用把二氧化碳和水转化成植物生长所需物质。
But rotting plant matter returns carbon dioxide to the atmosphere.
但是腐烂的植物又转化成二氧化碳返回到大气层中。
在碳黑色厂工人。
Photo by Worker at carbon black plant John Vachon.
工人摄于炭黑厂约翰瓦谢。
Second we should plant more trees to take in the carbon dioxide around us.
第二我们应该植更多的树来吸收二氧化碳。
Proposal is made for the improvement of actual water-carbon ratio control system of the plant.
针对操作实际提出了对目前装置水碳比控制系统的改进建议。
Oxygen, carbon dioxide, and nitrogen are essential for animal and plant life.
氧、二氧化碳、氮是动植物生命所必需的。
Oxygen, carbon dioxide, and nitrogen are essential for animal and plant life.
氧、二氧化碳、氮是动植物生命所必需的。
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