Back-to-Back

在前人工作的基础上对三层层状介质的瑞利波频散曲线进行了正演模拟研究，对假定的几组典型模型参数的频散曲线进行了认真分析。通过分析可知，各频散曲线之间是互不相交的，从而对此问题有了一个更清晰的认识。指出当低速软弱夹层存在时频散曲线的特点，并根据分析结果，说明”之“字形频散曲线的形成机理。(On the basis of previous work, the Rayleigh wave dispersion curves of three layered media are studied by forward simulation, and the dispersion curves of some assumed typical model parameters are carefully analyzed. Through the analysis, we can see that the dispersion curves are not intersected with each other, so we have a clearer understanding of this problem. It is pointed out that the characteristic of time dispersion curve exists in low-speed weak interlayer, and according to the analysis results, the formation mechanism of zigzag dispersion curve is explained.)

可以实现基本的绘图功能，画直线，矩形，圆椭圆。图形学作业(Can achieve the basic drawing functions and draw a straight line, rectangle, circle, ellipse. Graphics jobs)

DXF文件格式说明，包中包含了dxf文件的所有组码的解释(DXF file format description)

基于pm谱的随机海浪仿真，能绘制出海浪的时间历程曲线。(The random wave simulation, based on PM spectrum can draw the time history curve of the wave.)

基于pscad4.5的三相逆变电路 自己实测可用的一个简单例子(Three phase inverter circuit based on pscad4.5 A simple example of their own measured available)

手动绘制点，自动生成样条曲线，可以拖动修改点来修改样条曲线(Manually plotting points, automatically generated spline curves, you can drag the modified point to modify the spline)

a simple ct & pt model in pscad.

一直以来一直分享别人的，自己也发个，台湾人写的另外喜欢吉他谱的可以来我小站，程序员也得娱乐娱乐http://www.gtp.cn(Has always been to share other people' s, also made their own, and the people of Taiwan to write like another guitar spectrum can come to my station, programmers have to http://www.gtp.cn entertainment Entertainment)

铺画列车运行图，可以参考一下如何画线等语句(plot train diagram)

三角形判断问题。可用于黑盒测试用例设计。(Triangle judgment. Can be used for black-box test case design.)