空间数据库书籍，Butman经典R树电子书籍！介绍R树结构等！

卓著的书在编程三维应用 -Outstanding book in the programming of three-dimensional applications

嵌入式系统的C程序设计.pdf ,该书介绍了c语言在嵌入式系统中的应用，是嵌入式电子工程师非常好的参考资料-C for Embedded Systems Programming. Pdf, book, c language, introduced in the embedded system is a very good electronic engineers embedded reference

a labview tutorial.very useful for newbies

L1117直流整压元件的中英文资料，可以组建简单的降压电路-L1117 handbook English and chinese version, for voltage out put ajust

labview的入门教材，让你在最短的时间内掌握labview的基础知识-LabVIEW entry materials, let you in the shortest possible time to master the basic knowledge of LabVIEW

this book give u detail information abt vc++ and helps u to improve it.

GB9706.1-2003医疗器械电气安全标准-GB9706.1-2003 safety standards for electrical medical equipment

TFT LCD液晶显示器的驱动原理_01.pdf-TFT LCD

这是一本比较好的关于TGE引擎的例子，可以用来学习。我上传的wed说明有误，我不知道在哪里改。这里说明下。这里就免费提供给大家学习吧-This is a good example on the TGE engine can be used to learn. I uploaded wed description is inaccurate, I do not know where to change. Here the explanatory notes. Here free of charge to them to learn from it

频率计是一种对信号的频率进行测量的仪器，是一种典型的电子测量仪器。能对频率量进行测量的仪器有许多：如模拟频率表、示波器、数字频率计、微机化智能频率计等。本文将对数字频率计项目进行探讨并设计和制作。-Frequency counter is a signal frequency measuring instruments, is a typical electronic measuring instruments. On the frequency of volume measuring instruments have many: such as analog frequency table, oscilloscopes, digital frequency meter, frequency meter microcomputer, such as intelligent. In this paper, digital frequency meter project will be carried out to explore and design and production.