repeating optical transit的意思|示意

复测光学经纬仪 复测光学经纬仪 repeating optical transit ; repetitionopticaltheodolite 电子测距光学经纬仪 electronic distance meter theodolite 光学经纬仪 微米经纬仪 micrometerin...

经纬仪度盘 ... 覆测经纬仪 repeating circle 经纬仪度盘（复制盘） repeating optical transit 复测经纬仪 repeller ...