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 Darvaza Gas Crater, Turkmenistan (1) |
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日付: 13/05/2012 08:06 - によって: bambatm - 695 ビュー - カテゴリ: さまざまな
While drilling in 1971, Soviet geologists tapped into a cavern filled with natural gas. The ground beneath the drilling rig collapsed, leaving a ...
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日本の 
