underground ice

They look like dry river beds, and suggest evidence that this ice trapped underground could have once existed on its surface.

它们看起来像干涸的河床，表明埋藏于地下的冰也许曾经位于地表。

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An introduction is given to the tunnel construction from construction of portal section, main tunnel, deep underground ice, and heat preservation, oxygen supply, and construction equipment.

从洞口段、洞身、厚层地下冰施工以及施工保温、供氧、机械设备配备等方面介绍隧道施工技术。

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Actually, scientists think it's water ice, mixed with dirt and rocks, one to two feet underground.

实际上, 科学家认为位于地表之下一至两英尺的冰态水掺杂着泥土和岩石.

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An underground ice skating rink will be built under the South Square of the Water Cube, and is set to open to the public in the fourth quarter of 2017, according to plans.

按照规划，水立方南广场将新建地下冰场，将于2017年第四季度对外开放。

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Discussion on the formation of thick underground ice near the upper limit of permafrost

多年冻土上限附近厚层地下冰成因探讨

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Chloride deicers are referred to as deicing salt, which can thaw ice and produce severe corrosions to road, bridge, building, underground pipeline and car etc.

氯盐类融雪剂一般称作化冰盐（Deicing Salt），其在融化冰雪的同时，它会严重腐蚀道路、桥梁、建筑物、地下管道、汽车等。

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