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Md5校验和算法用于保护流行的文档，即为了保证数据的完整性，使用指定的算法对原始数据进行校验和计算。接收器使用相同的算法来计算校验和值，如果和作为数据提供的校验和相同，则说明数据是不完整的。

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window Socket 学习,方便初学者学习与掌握-window Socket learning to facilitate learning and to master for beginners

程控交换与宽带交换课件，帮助大家学习，共同进步，希望大家也把课件上传，大家交流学习-Program-controlled switching and broadband exchange of courseware to help the U.S. study, and common progress, I hope everyone also courseware upload, communicate U.S. study

Java数据库连接（JDBC）API是一系列能够让Java编程人员访问数据库的接口，各个开发商的接口并不完全相同。在使用多年的Oracle公司的JDBC后，我积累了许多技巧，这些技巧能够使我们更好地发挥系统的性能和实现更多的功能。-Java Database Connectivity (JDBC) API is a series enables Java programmers a couple of According to the interface, developers of the various interface is not exactly the same. Used for many years in the company"s Oracle JDBC, I have accumulated a lot of skills, These skills will better enable us to play the performance of the system and achieve greater functionality.

本文利用核心芯片TDA5051A，采用ASK（幅度键控）调制技术，建立电力线通信系统，实现数字信号在电力线上进行传输。 关键词:电力线通信 TDA5051A 调制解调器 -In this paper, the core chip TDA5051A, using ASK (amplitude shift keying) modulation technology, the establishment of power line communication systems, digital signal transmission in the power line. Keywords: PLC modem TDA5051A

it is used to trake a mobile location using the first and second interval

amr是一种优秀的变速率语音编码技术，这篇文档介绍了amr中用到的两种帧结构。-amr is outstanding variable-rate speech coding technology, This document describes the amr which use the two frame structure.

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