...严寒地区；温度控制 [gap=883]Key words：West Route of the South-to-North Water Transfer Project；Concrete；Bitter Cold Region；Temperature Control ...
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tunnels in bitter cold region 高寒隧道
bitter cold region
严寒地区
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Despite the bitter cold, there was hardly any snowfall in this region so that all the cross-country and skiing slopes have to be made with artificial snow.
尽管天气严寒，这些地区仍然没有下雪，所以该地的越野滑雪道都必须施放人工雪。
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