The downward transport of ozone due to tropopause folding can reach middle part of troposphere, which has the most influence on the ozone in the upper troposphere.
对流层顶折叠使高空臭氧向下输送，这种向下的输送可以到达对流层中部，对上对流层的臭氧影响最大。
The seasonal reversal of wind field from the upper troposphere to the stratosphere is as pronounced as in the middle and lower troposphere.
东亚对流层中上部和平流层中下部风场的季节变化，与对流层中下部一样显著。
The heavy rain is presented under the condition of the strong positive vorticity, convergence, vapor flux convergence in middle and lower troposphere and stronger divergence at upper troposphere.
大暴雨发生在对流层中低层为气旋性涡旋、流场辐合加强、水汽通量增加、水汽通量辐合加强，并伴有高层较强辐散的情况下。
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