cellB1

说明：  PROFIBUS – DP的DP即Decentralized Periphery。它具有高速低成本，用于设备级控制系统与分散式I/O的通信，DP源码程序(It has high speed and low cost. It is used for communication between device-level control system and distributed I/O, DP source code program.)

2009年9月 《无线电》附资料 可以下载 有源代码-In September 2009 " radio" attached to the information source code can be downloaded

单相桥式全控整流电路，用于电路的整流，控制。(Single-phase bridge full-controlled rectifier circuit for circuit rectification and control.)

说明：  fingerprint Recognition using Matlab

线束加式使用大规模大规模集成电路 非机动车 在此(Circuits Conductor)

能够采集电压，电流及温度，并且显示在TFTLCD屏上(Capable of collecting voltage, current and temperature and displaying them on TFTLCD screen)

使用g6实现流程图,一个简单的流程图开发插件(Use g6 to implement flowchart, a simple flowchart development plug-in)

说明：  matlab代码CDMA多址接入多用户通信系统仿真程序(CDMA multiuser emulator)

dos commond dos命令详解 -Detailed dos commond dos command

Given N rational numbers in the form "numerator/denominator", you are supposed to calculate their sum. 输入描述: Each input file contains one test case. Each case starts with a positive integer N (<=100), followed in the next line N rational numbers "a1/b1 a2/b2 ..." where all the numerators and denominators are in the range of "long int". If there is a negative number, then the sign must appear in front of the numerator. 输出描述: For each test case, output the sum in the simplest form "integer numerator/denominator" where "integer" is the integer part of the sum, "numerator" < "denominator", and the numerator and the denominator have no common factor. You must output only the fractional part if the integer part is 0.(Input Description: Each input file contains one test case. Each case starts with a positive integer N (<=100), followed in the next line N rational numbers "a1/b1 a2/b2 ..." where all the numerators and denominators are in the range of "long int". If there is a negative number, then the sign must appear in front of the numerator. Output Description: For each test case, output the sum in the simplest form "integer numerator/denominator" where "integer" is the integer part of the sum, "numerator" < "denominator", and the numerator and the denominator have no common factor. You must output only the fractional part if the integer part is 0.)