如果大气情况能帮助空气垂直方向置换，就称为“不稳定大气”，即是较重的空气在较轻的空气上面。
望远镜放大率同时放大了不稳定大气的影响。
A large telescope magnification also magnifies the influence of unsteady air.
大的望远镜放大率同时放大了不稳定大气的影响。
A large telescope magnification also magnifies the influence of unsteady air.
这些因素包括混乱的大气波动、相对较慢但同样不稳定的海洋活动、地表变化，以及冰雪的覆盖范围。
These factors include the chaotic fluctuations of the atmosphere, the slower but equally erratic behavior of the oceans, changes in the land surfaces, and the extent of ice and snow.
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