1. Optical fiber CATV system includes optical transmitter, optical receiver , optical fiber, and essential optical path devices, such as optical splitter, optical connector etc. 光纤CATV传输系统包括光发射机、接收机、纤和必要的光通路器件（光分路器、纤连接器）。
2. Optical fiber CATV system includes optical transmitter, optical receiver , optical fiber, and essential optical path devices, such as optical splitter, optical connector etc. 光纤CATV传输系统包括光发射机、接收机、纤和必要的光通路器件（光分路器、纤连接器）。
3. Optical fiber CATV system includes optical transmitter, optical receiver , optical fiber, and essential optical path devices, such as optical splitter, optical connector etc. 光纤CATV传输系统包括光发射机、接收机、纤和必要的光通路器件（光分路器、纤连接器）。
4. Optical fiber CATV system includes optical transmitter, optical receiver , optical fiber, and essential optical path devices, such as optical splitter, optical connector etc. 光纤CATV传输系统包括光发射机、接收机、纤和必要的光通路器件（光分路器、纤连接器）。
5. The cold fusion is not traditional nucleus-nucleus fusion but a new fusion, a new theory model was expounded of dineutron-nucleus fusion in 1989. 本文指出冷聚变不是传统观念的核与核聚变，而是可在任何温度条件下都能进行的新型聚变。文中论述杨介甫于1989年首次提出的双中子态理论模型；
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mekometer optical distance meter optical range finder optical telemeter 光学测距仪;
mekometer optical distance meter optical range finder optical telemeter 光学测距仪;
mekometer optical distance meter optical range finder optical telemeter 光学测距仪;
mekometer optical distance meter optical range finder optical telemeter 光学测距仪;
