The amount of energy emitted by the Earth depends significantly on the chemical composition of the atmosphere, particularly the amount of heat-trapping greenhouse gases.
而地球向太空所辐射的能量多少，则在于大气层中空气成分构成，尤其是温室气体的含量大小。
The answer to this riddle lies in the metabolic activity of early photosynthetic life-forms that slowly but surely transformed the chemical composition of Earth's atmosphere.
这个谜题的答案在于早期光合生命形式的新陈代谢活动，这种活动缓慢但一定改变了地球大气的化学成分。
The conditions and elements present in the stellar atmosphere will dictate the chemical composition of the dust.
尘埃的化学成分受恒星大气呈现的状态与成分支配。
According to carburizing steel's chemical composition and ore's case carbon requirements, the carbon potential of furnace inside atmosphere is controlled quantitatively.
根据所采用渗碳钢的化学成分及渗件表面合联量，对炉气联势进行定量控制。
In addition, the atmosphere in heat treatment, chemical composition and different sources of nitrides can influence the crystallization of oxynitride glasses.
另外，热处理气氛、化学组成以及氮的来源都对氧氨玻璃的析晶产生影响。
That part of the atmosphere in which the chemical composition is homogenous (uniform).
化学成分是均匀的一部分大气。
That part of the atmosphere in which the chemical composition is homogenous (uniform).
化学成分是均匀的一部分大气。
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