中文说明：鲁棒性好，性能优越，一个很有用的程序，本科毕设要求参见标准测试模型，用平面波展开法计算二维声子晶体带隙,包括回归分析和概率统计，采用累计贡献率的方法。
English Description：
Robust, superior performance, and a very useful program, undergraduate setting requirements refer to standard test model, using the plane wave expansion method for calculation of band gap of two-dimensional phononic crystals, including regression analysis, and probability and statistics, cumulative contribution method is used.