现在这座冰山浮在一个由海冰环绕的冰间湖上。海低深水就是由这种冰间湖下沉形成，推动洋流像传送带一样在全球循环。
Bottom water produced by polynyas sinks to the bottom of the sea and drives the conveyor-belt like ocean circulation around the globe.
现在这座冰山浮在一个由海冰环绕的冰间湖上。海低深水就是由这种冰间湖下沉形成，推动洋流像传送带一样在全球循环。
Bottom water produced by polynyas sinks to the bottom of the sea and drives the conveyor-belt like ocean circulation around the globe.
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