这是一个lm339资料，希望能对你有所帮助。-This is a LM339 in the hopes of your help.

游戏策划文档,可以作为设计游戏时的参考。-game design document

详细讲叙了单片机开发的注意事项，方法以及开发步骤等知识。-讲叙detailed attention to the development of a single-chip issues, methods and steps, such as the development of knowledge.

本文分别深入讨论了C++与Java的异常处理机制。比较了C++与Java的异常匹配处理，异常类继承体系与异常处理代码的区别，并且讨论了异常对象的生存周期与存储方式。最后，在其基础上构想了异常处理机制的发展方向。 -In this paper, in-depth discussion of the C++ and Java exception handling mechanism. Comparison of C++ and Java exceptions match the handling, exception class inheritance system and the difference between exception handling code, and discussed the life cycle with the exception object is stored. Finally, based on the idea of exception handling mechanism of development direction.

ESRI公司ArcInfo的Shape文件格式介绍-the ESRI ArcInfo Shape file format introduced

哈工大的神经网络课件，内含源代码，很实用，欢迎下载-HIT the neural network software, including source code, it is useful, please download

ISO/IEC 14496-9 OLD MPEG4标准-ISO/IEC 14496-9 standard MPEG4 OLD

详细介绍小波变换的定义、特点及性质、小波反变换及小波容许条件等基础理论知识-Detail the definition of wavelet transform, characteristics and nature of anti-wavelet transform and wavelet basis to allow conditions such as theoretical knowledge

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

超声波测距的原理图。9个按键，一个液晶。-Ultrasonic Ranging schematic. 9 buttons, a liquid crystal.