The contents and equipment of Nanning and Guilin atmosphere composition observation stations is introduced.

介绍南宁、桂林大气成份站的观测项目及观测设备。

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Objective To Evaluate the environment quality in underground construction site based on the measurement of atmosphere composition and microclimate.

目的通过对大气成分和微气候的分析，对地下工程内的环境质量进行整体评价。

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So the spread of agriculture could very well have a profound effect on the composition of Earth's atmosphere.

所以农业的扩张很可能对地球大气的组成产生深远的影响。

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There were instruments to measure the composition of the atmosphere of Mars as it entered the atmosphere.

NPR: Revisiting the Viking Missions to Mars

But the strength of the greenhouse effect depends on the chemical composition of the atmosphere, because the phenomenon is due to the absorption of infra-red radiation by various gases in the air.

ECONOMIST: Climate change: Getting real | The

Weather is caused by disturbances within the atmosphere, but climate is controlled by external influences, such as the distribution of oceans and continents, the extent of ice and snow-cover, variations in the amount of energy from the sun, and changes in the chemical composition of the atmosphere.

BBC: Time to spend more money preparing for colder winters?