Moreover, Titan's atmospheric cycle is not a water cycle.

此外，“泰坦”的大气循环不是水的循环。

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The development of this model provides a useful tool to study the global cycle and long-term change of atmospheric trace gases later.

模式的建立为今后进一步研究大气微量成分的全球循环过程及其长期变化提供了有效的手段。

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Mercury (Hg) is the unique heavy metal transported with gaseous elemental Hg (GEM). Atmospheric Hg can be transported for a long distance, which plays an important role in global Hg cycle.

汞是唯一以气态单质形态随大气循环参与全球迁移的重金属元素，大气汞的长距离传输是汞的生物地球化学循环的重要特性之一，对全球汞循环有着重要的影响。

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The data, from NASA's TIMED mission, show that Earth's thermosphere (the layer above 62 miles or 100 km above the Earth's surface) "responds quite dramatically to the effects of the 11-year solar cycle, " Stan Solomon of the National Center for Atmospheric Research in Boulder, Colo.

MSN: Earth's upper atmosphere cooling dramatically