The underground caverns teem with small life-forms that the Sullustans hunt for sources of food and clothing. The few predators that wander the planet's surface rarely venture underground.

许多小生物生存在地下洞穴中，萨卢斯特人猎取它们以得到食物和衣料，在行星的地面上游荡的一些捕食者则极少探察地下。

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The underground caverns are multi-layered and inclined. The numerical results show that the mined caverns have potential hazards to highway. The affected zone along the highway must be improved.

模拟计算结果表明，研究区多层倾斜采空区对路基的危害性严重，必须对公路路基影响范围内的采空区部位进行处治。

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One of the obstacles: finding big, usable, underground caverns.

这其中面临的一个障碍是：要寻找到大空间以及可用的地下洞穴。

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The energy firm said it would continue to store waste on site until a deep geological disposal facility was made available - similar to the storages created in underground rock caverns in Finland.

BBC: Sizewell B nuclear power station

Thermal vents among the trees on the hillsides let off jets of hot steam from underground caverns.

BBC: A return to Middle-earth

M. has basked in the fame of nearby Carlsbad Caverns National Park, with its awesome underground stalactites and stalagmites.

FORBES: How Carlsbad got WIPPed