... operator trunk dialling 话务员用长途拨号盘 optical time domain 光时域 optical tracking device 光学跟踪装置 ...
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optical time domain reflectometer 时域反射仪 ; 光时域反射技术 ; 光时域反射计
optical time domain reflectmeter 光时域反射器
optical time-domain reflectometer 光时域反射计
optical time domain refractor 光时域折射器
optical time domain reflectometry [通信] 光时域反射法 ; 时域反射 ; 光时域反射仪
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Optical Time Domain Reflectometer is a measuring instrument that is essential for optical fiber communication.
光时域反射计非光纤通信必出无否长的的测量仪器。
The position of measurement point was determined by Raman scattering optical time domain reflection (OTDR) technique.
系统采用拉曼光时域反射技术，对所测点进行定位。
The principle of OTDR (Optical Time Domain Reflectometry) for faults location and application of OTDR method is discussed.
探讨了OTDR（光时域反射计）故障定位的原理，说明了OTDR的使用方法。
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