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數學上面代表平面點的位置,也即該點座標為:X=227,Y=123,其中Y為縱軸,X為橫軸 工程上面代表平面點的位置,也即該點座標為:X=227,Y=123,其中Y為橫軸,X為縱軸,一般工程座標與數學座標相反,工程座標的X向一般為軸北向,Y向一般為東向.
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