"Just one and a half years ago, the world was speculating not only about the depth of the recession, but even about a complete collapse of the system," Schwenker sums up.
“仅仅用了一年半前，世界只当作是对经济衰退的深度，而是连一个完整的系统崩溃，”施文克尔总结。
Abstract : The buried depth of karst paleo-caves in Tahe oilfield, Tarim basin is deeper than others throughout the world. But little is known about the reason why it did not collapse.
摘要 ：塔河油田奥陶系古岩溶洞穴埋藏深度之大在世界范围内罕见，但对其为何没有垮塌殆尽的原因却知之甚少。
For the same collapse type, the larger the buried depth is, the larger the changing amplitude of the stress of surrounding rock is.
对同一类型的塌方，隧道埋深越大，塌方后隧道周边应力变化幅度越大。
For the same collapse type, the larger the buried depth is, the larger the changing amplitude of the stress of surrounding rock is.
对同一类型的塌方，隧道埋深越大，塌方后隧道周边应力变化幅度越大。
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