These methods have revealed some unexpectedly immense formations in the deepest parts of the mantle; the largest of these is a buoyant mass of hot rock directly below Africa's southern tip.
这些方法在地幔最深处揭示了一些意想不到的巨大构造；其中最大的一块是在非洲南端正下方的一块热岩。
The key problem of karst foundation is not the foundation strength itself but the foundation stability, especially the stability of the free face of rock mass on the pile tip.
岩溶地基突出问题不是地基强度而是地基稳定性，尤其是桩端岩体临空面稳定性。
The key problem of karst foundation is not the foundation strength itself but the foundation stability, especially the stability of the free face of rock mass on the pile tip.
岩溶地基突出问题不是地基强度而是地基稳定性，尤其是桩端岩体临空面稳定性。
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