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unix小程序，里面包含有100多个小程序，可以供初学者学习，在linux下通过-small programs, which contains more than 100 small programs, for beginners to learn, through the linux

LLc功率变换器，负载突变情况下恒压输出，波形完美(LLc, a power converter, constant voltage output load mutation case, waveform is perfect)

整合excel文件，将多个文件整合进一个文件(Integrate Excel files to integrate multiple files into one file)

基于QT的音乐播放器，简单易懂的QT训练小项目(Music player QT - based music player, easy to understand QT training small projects)

生成一个能用LED光源投射出矩形光斑的自由曲面的程序(Generation of freefrom surface point cloud)

本文件为一个轴承故障诊断指标，名字为模糊熵，可以作为特征量的筛选指标，也可用作为特征指标。(This document is a bearing fault diagnosis index, whose name is fuzzy entropy, which can be used as a screening index of characteristic quantity, and can also be used as a characteristic index.)

Bayes Net工具箱在matlab中如何使用的说明，案例及讲解(How the Bayes Net toolkit uses instructions, cases, and explanations in MATLAB)

说明：  ansys实现傅里叶转化的宏命令，对学习ansys有帮助。(ansys Fourier transformation to achieve macro command, to learn ansys help.)

探壳工具，(explor prduction)

Hybrid cloud is composition of two or more cloud (private ,pubic etc.) 4] Community model: Managed by more than one organization together.