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тоннель
17:35 / 18.09.2017
Hyperloop One uchun eng maqbul mintaqalar tanlab olindi
17:41 / 24.09.2016
Xitoyda jahondagi eng baland tonnel qurildi
14:40 / 14.09.2016
Yetti nafar xitoylik tonnelda to‘silib qoldi
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