说明：  这是一本关于插补原理的书，很全面，对于开发数控系统的朋友很有帮助。从逐点插补到高阶曲线插补，极其全面，祥细。
(This is a book about the interpolation principle, it is comprehensive, numerical control system for the development of helpful friends. Interpolation from the point by point to the high curve interpolation, extremely comprehensive, Xiangxi.)