SR

采用声波高阶有限差分算法，克服了有限差分法本身存在的数值频散问题，使用了最佳匹配层吸收边界，较好地消除了边界反射，成功模拟了 声波波场在地下介质中的传播情况。(The high-order finite difference method is used to overcome the numerical dispersion problem of the finite difference method itself. The best matching layer absorbing boundary is used to eliminate the boundary reflection and successfully simulate the propagation of acoustic wave field in underground media.)

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水质模型分析，二维模型，一维模型，水污染分析模型。(Analysis of water quality model)

说明：  使用2020，IGRF-13球谐系数，计算点位磁正常场。igrf.m，输入点位三维坐标(Use 2020, igrf-13 spherical harmonic coefficient to calculate point magnetic normal field,IGRF. M, input three-dimensional coordinates of point position)

通讯录的记录系统可以实现输入记录、显示全部记录、删除记录、插入记录、保存文件等操作-Book of the recording system can record the input, display all the records, delete records, inserting records, save files, and so

erp software for test

说明：  无线物理层密钥生成方法，信道估计，信道量化(Wireless Physical Layer Key Generation Method, Channel Estimation, Channel Quantization)

Cartoon animation effect is a kind of 3D rotation according to the position of the mouse, and with light and shadow effects, the effect is very cool.

说明：  classifier for machine learning

说明：  c++设计模式，对入门的开发人员有较大的帮助(C + + design pattern is of great help to beginner developers)