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说明：  notes on triangle of junior level

pushlet 示例 源码，供参考 发达省份(pushlet example示例 源码，供参考 第三方)

PSO算法；适应度函数；模态置信矩阵；求解案例分析(PSO algorithm. Fitness function; Modal confidence matrix; Solving case analysis)

Z值渲染，VB＋M0开发的GIS源代码，可以在二维图上增加Z值，实现第三维操作-Z value rendering, VB M0 developed GIS source code, can be increased in two-dimensional map of Z values, the realization of the third-dimensional operation

说明：  对基于模块化多电平换流器作为逆变器采用最近电平逼近调制模式时的谐波分量进行分析，选取逆变器上、下桥臂电流，相间环流及交流输出电压波形作为研究 对象，通过理论推导出上、下桥臂电流主要具有直流分量、基波分量及 2 次谐波分量;相 间环流仅含有偶次谐波;交流输出电压波形仅含有奇次谐波。(Based on the analysis of the harmonic components of the modular multilevel converter when the closest level approach modulation mode is adopted as the inverter, the upper and lower bridge arm currents, inter phase circulation and AC output voltage waveforms of the inverter are selected as the research objects, and the current of the upper and lower bridge arm mainly includes DC component, fundamental component and second harmonic component; There are only even harmonics in the inter phase circulating current and odd harmonics in the AC output voltage waveform.)

说明：  VB编写3d-飞机模型，不用directx(VB to write 3D airplane model without DirectX)

说明：  python游戏编程教材 人民邮电出版社第三版(Python game programming textbook, people's Posts and Telecommunications Press, Third Edition.)

对许多电脑爱好者来说，并不是常常有计算机可以安装，其实通过日常的一些维护，你也可以学到许多DIY知识。我们在这里介绍一下，常用的一些简单的维护办法，希望能引起大家注意，制定出自己的电脑维护方案。-for many computer enthusiasts, not often can be installed with a computer, through some routine maintenance, you can learn a lot of DIY knowledge. We are here to tell us, usually some simple maintenance of way that can arouse the attention of Members to develop its own computer maintenance program.

listbox组件的六种特效, 在实际编程中的使用。(The six special effects of listbox in Delphi.)

Cadence orcad design file IR sensor