编译原理词法分析，自己原创，毫无保留的传上来了，进攻大家好好分享-compiler theory lexical analysis, their originality, without reservation onto a mass offensive that they have to share

大批量遥感影像数据根据shp边界裁剪，该方法很快，而且高效，对数据批量处理效果极佳-Mass remote sensing image data according to SHP boundary tailoring, this method is fast, and efficient, the data batch processing excellent results

通过具有随机结构参数的四分之一车辆模型研究了具有不确定性结构参数的车辆在受到来自道路的随 机激励作用下的振动响应问题。将簧上质量、簧下质量、悬挂阻尼、悬挂刚度以及轮胎刚度均认为是随机变量。将路面的不平整引起的对车辆的激励看作高斯随机过程并通过简单指数功率谱密度来建立力学模型。-By a quarter vehicle model with random parameters studied vehicle structure uncertain structural parameters of

通过这个软件可以模拟计算有效质量。。。。。(calculaion effective mass)