The RC01 grinding train uses 48 stones per rail, divided over four grinding units.

RC01打磨列车打磨每段钢轨需要48块磨石，这些磨石共分配到四个打磨单元中。

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The RC01 grinding train uses 48 stones per rail, divided over four grinding units.

RC01打磨列车打磨每段钢轨需要48块磨石，这些磨石共分配到四个打磨单元中。

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