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智能安防报警系统是集布防,检测,报警为一体的软硬件相结合智能化系统。(Intelligent security alarm system is a deployment, detection, alarm as one of the intelligent combination of hardware and software systems.)

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A Beginner’s Guide to Modeling with NEC vol 3

无线信道时延扩展仿真 一、仿真目的 　　　在数字通信中，无线信道所表现出的时延扩展将有可能引起接收信号的码间串扰。实验的目的是从时域角度方面对移动信道的多径环境引起的接收信号时延扩展现象进行仿真。(wireless channel delay spread simulation One, the simulation purpose In digital communication, wireless channel delay spread shown will likely cause the received signal crosstalk code. The aim of the experiment is to delay the received signal due to multipath environment of mobile channel in time domain and the phenomenon of simulation.)

说明：  仿真机床切割,可生产可编辑的轨迹代码,方便操作.(Simulated machine tool cutting, can produce editable trajectory code, easy to operate.)

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霸猪房屋租赁系统，和搜房差不多，别的没什么特别(tyrants pig housing rental system, and the seizure of the almost, no other special)

说明：  vb与plc通讯帮助解决vb与plc通讯之间的问题(vb and Communications plc)

宽频放大器,有以下功能: 预置增益,增益加/减,显示输出电压有效值,自动增益 显示有效值. 增益输入及加减 自动增益没有实现(Wideband amplifier has the following functions: Preset gain, gain plus/minus, the display output voltage RMS, automatic gain display rms. AGC gain input and subtraction is not implemented)

vb单片机上位机例程 很详细的例子，直接可用 适合初学者 (vb example)