atmospheric composition

基本解释

It would be particularly important for us to limit our emissions of greenhouse gases, since atmospheric composition can be observed from other planets.
减少温室气体的排放对我们来说就显得尤为重要，因为其他星球（上的生物）能够观测到地球大气的组成成分。
By studying the filtered starlight, astronomers can determine such a planet's atmospheric composition and also the direction and velocity that any gas lost to space is moving.
通过研究过滤后的恒星光，天文学家确定该行星大气的组成，以及气体被吹入太空的方向以及速率。
"It so happens that if you bring a solar component in and mix it with that fractionated krypton, you get the present atmospheric composition," Pepin explains.
“如果确实是这样的话，那么你能够把太阳能的组成部分纳入，然后把它和分馏出来哦氪气混合，然后就可以获得现在大气层中的各项组成成分。” Pepin这样解释道。

As an explanation for the conundrum of the ice ages, this notion could only hold water if a mechanism for such large changes in atmospheric composition might be found in the real world.
FORBES: Global Warming Is No Threat?
Each day, the scientific community collects millions of individual Earth observations, allowing us to examine, monitor, and model atmospheric composition, seismic activity, ecosystem health, weather patterns, and hundreds of other characteristics of our planet.
WHITEHOUSE: Office of Science and Technology Policy Blog