科研之友
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<正>瑞士最受欢迎的一处滑雪区一直使用布料覆盖山区,以减少夏季时的冰层融化。One of Switzerland’s most popular skiing areas has been covering mountain areas with cloth material in an effort to reduce ice melting over the summer.Workers have placed large blankets of material around Mount Titlis, a skiing area near the Swiss mountain town of Engelberg.
