It is the focus to get eigen equation of all kinds cross section waveguide in guide wave optics.
求解各类截面波导的本征方程，一直是导波光学研究的焦点问题。
An optics method for measurement of beam section deflection of major bridge structure is put forward.
提出了一种大型桥梁结构截面挠度测量的光学方法。
The section sets five professional LABS: electromagnetism, wireless, time frequency, acoustics and communication optics, in charge of value transfer of each parameters in Wuxi and surrounding areas.
部门下设电磁、无线电、时间频率、声学和通信光学五个专业实验室，负责无锡及周边地区各类参量的量值传递工作。
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