悬臂梁分析

从百度上下载音乐的脚本,需要用到python2.x的库。(download music from music.baidu.com)

说明：  专门为串行通信usb接口设定的标准规范，这是一个很有用的文档说明(usb1.1 design spec for the usb desin is very useful)

说明：  calculate the result, more execises and more experience.

说明：  TDOA通过四站定位，确定三个辅站从而计算出主站坐标(This code discrabes the tdoa about math)

说明：  对流层大气波导，可以使电波在较小的衰减下实现超视距传播，从而对无线电电子系统的运作产生严重的影响。对于通讯电路，它使系统间的相互干扰题目变得复杂；对于探测系统，产生的则是雷达空洞、超视距探测等题目。因此开展大气波导环境中电波传播特性及其应用的探究具有重大的理论意义和军事价值。 (Tropospheric waveguide, can make waves in the smaller attenuation achieve-the-horizon communication, and thus the operation of radio-electronic systems have a serious impact. For the communications circuits, which allows the mutual interference between systems has become a complex subject for the detection system is generated by the radar empty-the-horizon detection and other topics. Therefore, to carry out atmospheric environment of radio wave propagation characteristics of waveguides and its application to explore the theoretical significance and of great military value.)

科技创新不是一夜之间就能搞成的。他也是一个渐变的过程。(technology innovation is not into the overnight. He is also a gradual process.)

实现科学计算器，为广大学生阶层提供技术支持，为下一步设计打下坚实基础(Realizing Scientific Calculator)

说明：  《Python+Cookbook》第三版中文(Python Cookbook V3.0)

说明：  python源码剖析，带详细目录，觉得好请点赞(Python source code analysis)

本书为清华大学温诗铸院士的一本弹流润滑专著，很权威。(This book is an academician of EHL,written by Shi-Zhu Wen a monograph in Tsinghua University.it is authoritative.)