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4G 天线覆盖 2km。对于 (0,0), (3,0), (0,3), (3,3) 的 4 个天线,哪个区域有重叠覆盖?
4G 天线覆盖 2km。对于 (0,0), (3,0), (0,3), (3,3) 的 4 个天线,哪个区域有重叠覆盖?
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