Sublevel caving method without sill pillar is adopted in the south section of Fengshan Copper Mine.
丰山铜矿南缘采区应用无底柱分段崩落法采矿。
Walk to the hotel entrance and pick up COPPER WIRE located to the right of the archway pillar.
步行到酒店门口，拿起铜线位于拱门支柱的权利。
Walk to the hotel entrance and pick up COPPER WIRE located to the right of the archway pillar.
步行到酒店门口，拿起铜线位于拱门支柱的权利。
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