提供了一种简单实用的空间凸轮实体造型系统开发方法，容易为一般工程技术人员所掌握。
A kind of simple and practical development method for entity modeling system of spatial CAM was provided; and can be easily mastered by ordinary technicians.
生命是变化莫测的，万物实体是极不易掌握的，道运筹的准则是无穷无尽、深奥而不明的。
It is difficult to master the frequently-changing life and entity of all things; the operational rule of Tao is limitless, profound and obscure.
通常有一个掌握或控制认为，创建并维护一些数据对象或实体，可能有一个或多个依赖视图显示所有或其中的一部分数据对象的信息。
Usually there is a master or control view that creates and maintains some data object or entity and there may be one or more dependent views that display all or part of that data object information.
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