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mentor wg 2004 dc-dv介绍了从库，原理图到PCB板的详细过程，这个是个教程，以后会加入自己所做的库，共大家学习下载(mentor wg 2004 dc-dv introduction from the library, to the PCB board schematic details of the process, this is a tutorial will be added later for his own library, a total of U.S. Learning Download)

全国第一部、国内最好的、全网最热的产品经理公益免费视频教学课程，让你领略产品经理职业的独特魅力。通过浅显易懂的内容引导，真实细致案例解析，让学习者能够清晰的认识和理解“产品经理”的职业特性；并能掌握基本的产品经理技能与思维逻辑，目前已超过60万学习频次！本文档为课程PPT。(The first nationwide, the best, the hottest online product manager public welfare free video teaching course, let you appreciate the unique charm of the product manager profession. Through simple and easy-to-understand content guidance, real and detailed case analysis, so that learners can clearly understand and understand the professional characteristics of the "product manager"; and can grasp the basic product manager skills and logic of thinking, more than 600,000 learning frequency!)

一个详细的程控直流、交流电源资料，详细介绍了军用高品质电源的设计方案(A detailed program-controlled DC, AC power supply information, details of the military power of high-quality design)

ansys 热分析 水结冰 锻件冷却 热处理过程分析(Analysis of cooling and heat treatment process of ANSYS thermal analysis water ice forgings)

文献管理软件 EndNote 使用方法，专业技术讲座资料，权威实用，十分难得，十分珍贵。(EndNote bibliographic management software to use, professional and technical lecture, authoritative and practical, very rare, very rare.)

最短路径求解,Shortest path solution(Shortest path solution)

gdb的调试工具指南，希望对广大朋友有所帮助。(gdb debugging tools guide, hope to help our friends.)

cmos模拟电路设计，很经典的一本教材的电子版，大家分享(cmos analog circuit design, it is a textbook classic of the electronic version, we share)

这是一个关于递归算法原理的解释，很不错，请大神指点。(This is a recursive algorithm on the interpretation of the principle, very good, please great God pointing.)

这是用MATLAB制作的自适应滤波算法的源码(This is produced using MATLAB adaptive filter algorithm source code)