是计算伺服阀可靠性的公式文件，代码简单，原理清晰，很适合初学者学习。希望对大家有所帮助哦。-Servo valve reliability is calculated formula file, the code is simple, clear principle, it is suitable for beginners to learn. I hope to help oh.

实验报告：了解阿里云服务的配置和使用方法；使用云服务器搭建一个Web服务器；管理和维护Web服务器 -Experimental Report: Learn to configure and use Ali cloud services cloud server set up a Web server manage and maintain Web server

大数据工具源码分析，分析的很权威，相当不错适合初学者学习-Big data tools for source code analysis, analysis of a great air of authority, is very good for beginners to learn