These springs are the sources of streams and rivers, which cut through the rocks and carry away debris from the mountains to the lowlands.
这些泉水是溪流和河流的源头，这些溪流和河流穿过岩石，把山上的碎石带到低地。
There are no footprints, no type tracks and no heavy machinery like a bulldozer…Nothing was ever brought in to move these heavy rocks.
没有脚印，没有履带，也没有推土机之类的重型机械……没有任何东西被带来用以搬过这些重石头。
These sections of rocks are dissected, using a laser, into slices a millimeter or less thick.
采用激光将这些小岩石块切分成一毫米或更薄的薄片。
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