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optical time domain reflector
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optical time domain reflector
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光纤检测仪器
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optical time domain reflector
光时域反射计
测试光纤链路沿线上光纤本身的性质、连接器、熔接点、弯曲或其他类似的事件而产生散射和反射的损耗大小和位置信息的设备。被广泛应用于光缆线路的维护、施工之中。
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Book Monthly
Book of Agriculture by Cai Kui
Book of Algebra and Al-muqābala,kitāb al-jabr wa al-muqābala
Book of algebra and al-muqābala,kitāb al-jabr wa-al-muqābala
Book of a Rainy Day
Book of Changes, inscribed on bamboo slips of Chu collected in Shanghai museum
Book of Chinese Family Names
Book of Cricket
Book of Dede Korkut
Book of Etiquette and Ceremonial
Book of Han
Book of Han,block-printed edition,North Song Dynasty
Book of Historical series documents on Tsinghua Bamboo Slips
Book of Ivory Carving Yueman Qingyou about 12 Monthes
Book of Job
Book of Kells
Book of Lineages
Book of Lord Shang
Book of Master Shi
Book of Northern Qi Dynasty
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