用作空气中二氧化碳的吸收剂。
空气中二氧化碳的含量已经到达了一个危险水平。
The amount of carbon dioxide in the air has already risen to a dangerous level.
介绍了环境监测用空气中二氧化碳标准气体的制备方法。
In this paper, the preparation method of gas reference material of carbon dioxide in air for environmental monitoring is introduced.
丹麦日益增长的肥胖人口大致符合空气中二氧化碳增加的情况。
The increase in obese people in Denmark is roughly equivalent to the increase of carbon dioxide in the atmosphere.
而结果是，影响史前气温转变的最大因素一直是空气中二氧化碳含量的摆动。
And as it turns out, the biggest factor affecting prehistoric temperature shifts has been fluctuating levels of carbon dioxide in the air.
这并非说空气中二氧化碳浓度再高一些，植物光合作用效率也不可能再提高。
This is not to say that they could not function more efficiently if the concentration of carbon dioxide in the air was higher.
由于这种方法的实施，减少了森林空气中二氧化碳以碳的形式存储在树木中的数量。
This practice loosed the forests' stored carbon into the atmosphere in the form of carbon dioxide.
另一方面，像乔治·汉布利那些人，他们反对这种观点，认为我们不应该为空气中二氧化碳含量高担心。
On the other hand, there are those, like George Hambley, who are opposed to this view, believe that we should not worry about high levels of carbon dioxide in the air.
因为空气中二氧化碳的密度只有万分之三，所以聚集在植物内部的碳是从周围极大体积的空气中得来的。
The concentration of carbon dioxide in the air being only 0.03 percent; carbon is amassed into the compass of the plant form a large volume of air.
问题的关键是两种自然现象之间的平衡，有利的一种是：随着空气中二氧化碳含量升高，植物生长得更快，回过头来吸收更多的碳。
At issue is the balance between two natural phenomena. One is beneficial: as carbon-dioxide levels in the air rise, plants grow more quickly, absorbing more carbon in return.
此外，岩兰草生态系统对大气中二氧化碳的吸收具有很好的作用，可以用来解决许多与空气污染相关的问题。
Additionally the Vetiver System has great potential for atmospheric carbon dioxide uptake and could be able to solve many problems relating with air pollution.
氮中二氧化碳和空气中甲烷气体标准物质属于标准混合气。
The two gaseous Reference Materials, Carbon dioxide in nitrogen and methane in air, belong to standard mixed gases.
氮中二氧化碳和空气中甲烷气体标准物质属于标准混合气。
The two gaseous Reference Materials, Carbon dioxide in nitrogen and methane in air, belong to standard mixed gases.
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