• 2022-05-29
    .如何衡量距离测量精度?用钢尺丈量了AB、CD两段距离,AB的往测值为307.82m,返测值为307.72m,CD的往测值为102.34m,返测值为102.44m,问两段距离丈量的精度是否相同?哪段精度高?