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BS ISO 17123-4 光学和光学仪器 大地测量和勘测仪器的现场测试程序 第4部分 电光测距仪(EDM 反射镜测量)
BS ISO 17123-4. Optics and optical instruments. Field procedures for testing geodetic and surveying instruments. Part 4. Electro-optical distance meters (EDM measurements to reflectors)