这是关于数字版权管理的一个协议文档，介绍了总体的协议架构，对写OMA的DRM协议的程序员有指导作用。...

介绍USB分析仪器的商机，是一个非常好的项目。有兴趣可以做-USB devices on the business opportunities, is a very good project. Interested can do

版权所有2004 Sergiu Dumitriu，Marta Gî rdea，C&ŧ259 t&ŧ259 lin Hri&ţ355 cu根据GNU Free Documentation License 1.2版或自由软件基金会发布的任何更高版本的条款，授予复制、分发和/或修改本文档的许可，不包含固定章节、封面文本，没有封底短信。许可证副本包含在“GNU免费文档许可证”一节中，所有品牌名称、产品名称或商标均属于其各自的持有人。

基于WEB的项目管理系统 优秀毕业论文-Web-based project management system outstanding thesis

mips 4ke系列用户使用文档， 网络上不是很好找。-mips 4ke series user documentation, the network is not very good looking.

社区服务系统毕业论文 适合社区服务系统的毕业设计论文-Community service system for community service graduation graduation system design thesis

this the rar file useful for the student s-this is the rar file useful for the student s

单端反激式开关电源具有结构简单、输入输出电气隔离、电压升／降范围宽、易于多路输出、可靠性高、造价低等优点，广泛应用于小功率场合。然而，由于漏感影响，反激变换器功率开关管关断时将引起电压尖峰，必须用钳位电路加以抑制。由于RCD钳位电路比有源钳位电路更简洁且易实现，因而在小功率变换场合RCD钳位更有实用价值。 -Single-ended flyback switching power supply with a simple structure, input and output electrical isolation, voltage up/down range, easy to multi-output, high reliability and low cost, widely used in low-power occasions. However, due to leakage effects flyback converter power switch off when the voltage spike caused by the need to be inhibited by clamping circuit. RCD clamp circuit as a result of active-clamp circuit than the more concise and easy to realize, and in low-power transform RCD clamp occasions more practical value.

POS―MIS前台ER图设计范例，DOC文档。-POS-MIS prospects ER designs example, DOC files.

USB Joystick Source code.

Relay driving basics you can use it as a good reference