Optical fibres - Part 1-45: measurement methods and test procedures - Mode field diameter.
光纤。第1 - 45部分：测量方法和试验规程。模场直径。
Field test calculation and analysis revealed that calculation results were accurate, testing technologies and analytical procedures were simple and it was suitable for field application.
通过现场测试计算和分析表明，该方法的计算结果正确、测试工艺及其分析过程简单，便于现场应用。
The functions, frames and field operating procedures of the test system are introduced.
概要介绍该系统的功能、构成和现场操作步骤。
The functions, frames and field operating procedures of the test system are introduced.
概要介绍该系统的功能、构成和现场操作步骤。
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