每当海冰出现时，冰穴惯常在这三个地方发生，这是因为冰穴最可能出现在暖流上升向海面的地方。

Polynyas are routinely present in these three locations when sea ice is present.The polynyas most likely form where warm ocean currents rise toward the ocean surface.

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在这个地方的大陆架是大约600米深，当从外面来的暖流碰上大陆架，就会沿大陆架向上升到浮着的冰川下面。

The continental shelf here is about 600 meters (2,000 feet) deep, and as the warm water from the open ocean meets the shelf, it continues to flow toward land and rises beneath the floating glacier.

youdao

在这个地方的大陆架是大约600米深，当从外面来的暖流碰上大陆架，就会沿大陆架向上升到浮着的冰川下面。

The continental shelf here is about 600 meters (2, 000 feet) deep, and as the warm water from the open ocean meets the shelf, it continues to flow toward land and rises beneath the floating glacier.

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