General specification for optical time domain reflectometers 光时域反射计通用规范
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Test methods of optical time domain reflectometer 光学时域反射计的试验方法
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Verification regulation of optical time domain reflectometer 光时域反射计otdr检定规程
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Test methods for optical time domain reflectometers 光时域反射计测试方法
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Optical time domain reflectometer ( otdr ) is a kind of the new type optical malfunction measuring equipment that developed in 1980 ' s 光纤时域反射仪( otdr )是八十年代才发展起来的新型光纤故障测试设备,全称是opticaltimedomainreflectometer 。