计算机图形学的基于VC的图形编程，有手动添加鼠标的功能。图形界面的，计算机图形学的经典实验演练-computer graphics-based VC graphics programming, manually add the functions of a mouse. A graphical interface, computer graphics classic experimental drill

平头打眼机电气原理图（可用AUTOCAD打开)-Electric drill machine flat map

geda的gerber文件工具，能查看标准的gerber文件-# Gerbv is a viewer for Gerber RS-274X files, Excellon drill files, and CSV pick-and-place files. # Gerbv is a native Linux application, and it runs on many common unix platforms. # Gerbv is free/ open-source softwa