The paper introduces the treating construction technique of Micangkou tunnel underground buriedriver and cave at Three Gorges Dam alongside highway.
本文介绍了三峡库区沿江公路米仓口隧道地下暗河及溶洞的处理施工技术。
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SYDNEY: An ancient river system buried 35 metres below the sand dunes Simpson Desert in Central Australia has been revealed by a team of Australian and American researchers.