The shape of mining patch is relatively simple and becomes more and more compact and complicated with the increase in patch area;

鞍山矿业斑块形状比较简单，随着斑块面积的增加斑块形状越来越紧凑，也趋于复杂；

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The shape of mining patch is relatively simple and becomes more and more compact and complicated with the increase in patch area;

鞍山矿业斑块形状比较简单，随着斑块面积的增加斑块形状越来越紧凑，也趋于复杂；

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