A collection of libraries and stand-alone header files that aid in the creation of computer-aided design programs. 在计算机辅助设计的创作帮助类库和独立标头文件的一汇集编程。
Engineering drawing intelligent interpretation is an intersectant subject of Computer Graphics and Computer Aided Design. 工程图样智能理解是一个典型的计算机图形学和计算机辅助设计学等学科的交叉课题。