强烈的热层与太阳交互作用，因此受较大的周期发生的太阳活动影响。
The thermosphere interacts strongly with the sun and hence is greatly influenced by the sun's solar activity, which occurs in cycles.
强烈的热层与太阳交互作用，因此受较大的周期发生的太阳活动影响。
The thermosphere interacts strongly with the sun and hence is greatly influenced by the sun's solar activity, which occurs in cycles.
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