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Exosphere
01
外气层
the outermost layer of Earth's atmosphere, transitioning to outer space, with extremely low gas densities
exosphere
n
例子
The exosphere contains a mix of residual atmospheric gases, including hydrogen and helium.
The International Space Station orbits within the exosphere, experiencing a near-vacuum environment.
Gas molecules in the exosphere are so sparse that they can travel hundreds of kilometers without colliding.
