RFC3455中文版，对于学习IMS的人有很大的帮助。

ip电话的关键技术,包括语音编码,压缩,打包,分组交换,以及保证语音质量而采取的回声抵消技术.-ip telephone key technologies, including voice coding, compression, packing and packet switching, and voice quality assurance and the echo cancellation technology.

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ads40航飞数据处理资料，有一些原理上的剖析。-Airlines flying ads40 data processing information, there are some principles of the analysis.

RFID 工作频率指南和典型应用包括开发应用-RFID operating frequency guidelines and the typical applications include the development and application of

该文发表于08年，研究了近十年来约300篇图像检索论文，涉及主要的经典理论、图像标注并讨论了相关子领域。该文还讨论了如何利用现有的图像检索技术构建现实中图像系统，是一篇不可多得的图像检索综述。-The article surveys almost 300 key theoretical and empirical contributions in the current decade related to image retrieval and automatic image annotation, and in the process discuss the spawning of related subfields.The paper also discusses significant challenges involved in the adaptation of existing image retrieval techniques to build systems that can be useful in the real world.

计量专用设计相关设计电能的设计 电力行业 -Measurement-specific design of the design of energy-related design power industry

通软Prolution集团管理软件白皮书,正在做相关行业初期了解的同志们可以-Qualcomm soft Prolution Group Management Software White Paper, is to do the initial understanding of related industries can Comrades