GB/T 15972.45-2021光纤试验方法规范第45部分:传输特性的测量方法和试验程序模场直径标准
英文:Specifications for optical fibre test methods—Part 45:Measurement methods and test procedures for transmission charac...
英文:Specifications for optical fibre test methods—Part 45:Measurement methods and test procedures for transmission charac...