At high altitude you have jet streams, and the wind velocity is not the same at all altitudes.
在高海拔处会有高速气流，风速在不同的海拔处，并不相同。
These experts are especially concerned that new patterns of air movement in the Arctic could disrupt the Northern Hemisphere's jet streams - which are apparently weakening and moving northward.
这些专家尤其关注北极的空气流动的新模式可能会扰乱北半球的急流——很明显的是，这种气流正在削弱并向北方移动。
All this affects the movement of the jet streams, which reflect but do not create air movement.
所有这些都会影响急流的运动，急流的运动只是反映了而不是创造了空气的流动。
Jet streams are a symptom of the overall atmospheric movement, not a driving force.
急流是整个大气运动的征兆，而不是驱动力。
Jet streams are a symptom of the overall atmospheric movement, not a driving force.
急流是整个大气运动的征兆，而不是驱动力。
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