底冰，女，博士，北京工业大学制冷与低温工程系讲师。
从冰底和水表藻种组成的对比表明，两者仅在春末冰底冰藻水华期间具有较强的相似性。
The comparison of algal composition and abundance between bottom layer of ice and surface layer of water suggests that it is different except in late November when the spring ice algal bloom occurred.
我们沿着陡峭的马路骑车来到了诺曼底海边的阿罗芒什，在一家咖啡店停下来用午餐，喝冰啤酒。
We pushed our bikes down the steep path to Arromanches on the Normandy coast and stopped at a café for lunch and a cool beer.
那是二月底的一个午夜，零下几度，结了冰。
It was midnight, late January, a few degrees below freezing.
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