来自月球的岩石表明它们曾经被融化。

Rocks from the moon show that they were once melted.

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被融化的岩石由于粘性较低，因此能轻易流到岩石层上方形成火山锥。

The melted rock has a low viscosity, and it flows easily up through the overlying rock.

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在这个宏大的过程中，岩石被融化，再生，以新方式聚集化学元素。

These epic processes melted and reprocessed vast amounts of rock and concentrated chemical elements in new ways.

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