我们当然看到了海脊南北区域差异的迹象。

We certainly see indications that there are differences between the north and south regions of the ridge.

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当冰川和海脊分开，冰流速度就大大加快。

When the glacier became detached from the ridge, the ice flow was able to accelerate significantly.

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它的存在完全取决于地质学家所称的中大西洋海脊。

Its existence depends entirely on what geologists call the mid-Atlantic ridge.

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