从网络管理系统中获取网络主干链路带宽数据，计算带宽利用率，并生成主干链路带宽利用率图形。-from Network Management System access network backbone link bandwidth data to calculate bandwidth utilization, Generation and trunk link bandwidth utilization graphics.

GUI光学薄膜多层膜系反射率分析，绘制反射率与波长、角度的函数曲线，计算带宽-Optical thin film multilayer reflectivity analysis, draw the function curve of reflectivity and wavelength, angle, calculate bandwidth