• 2022-06-14
    设用某台经纬仪观测6个三角形三内角,其角度闭合差为ωi (i=1,2,3,4,5,6), 测角中误差m计算公式是 ( )
    A: [img=125x67]1803772310f77ba.png[/img]
    B: [img=123x71]180377231be1548.png[/img]
    C: [img=118x67]1803772327320d3.png[/img]
    D: [img=118x69]18037723313c485.png[/img]