用半径为r的小圆填充一个固定大小半径为r的大圆,如何选择小圆半径r和排列方法,才能让面积利用率最高? 知乎 Template




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tomski用半径为r的小圆填充一个固定大小半径为r的大圆,如何选择小圆半径r和排列方法,才能让面积利用率最高? 知乎 coloring