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Apply ice for 10-15 minutes every hour, then reduce the frequency as the pain become less strong.

每小时冷敷10-15分钟的冰块，然后随着疼痛减轻，减小冷敷的频率。

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They aim to establish the average ice thickness of 10 sites using power drills, snow depth measurements and GPS readings.

他们目标通过电钻，冰雪测量仪器和GPS得出10个地点的海冰厚度平均值。

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Professor Peter Donnelly, of Oxford University, said the Welsh carry DNA which could be traced back to the last Ice Age, 10, 000 years ago.

BBC: Welsh people could be most ancient in UK, DNA suggests

He was born and raised in Buffalo, New York, where a boy is so lucky because he can play ice hockey outdoors 10 to 11 months a year.

CNN: Blackhawks making history whether you like it or not

The estimated volume of the north ice cap is about 10 times less than the minimum volume of an ancient ocean that some scientists believe once existed on Mars.

BBC: By BBC News Online Science Editor Dr David Whitehouse