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GPS 三角测量:3 颗卫星在 (0,0), (10,0), (0,10) 测得距离 sqrt(50), sqrt(50), sqrt(50) 。你的位置?
GPS 三角测量:3 颗卫星在 (0,0), (10,0), (0,10) 测得距离 sqrt(50), sqrt(50), sqrt(50) 。你的位置?
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