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水平仪怎么用
更新时间: 2021-03-24 14:11:30  

1、确定两观测点中间位置,打开三脚架并使高度适中,使三只脚拉伸长度相同,扭紧制动螺旋。

2、调节脚螺旋,使圆水准气泡居中,用望远镜准确瞄准目标,定位测量的位置。

3、用十字丝的中丝在水准尺上读数,从小数向大数读,读四位,目标高=后尺读数+后视高-前尺读数。

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