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以模块化设计理论为基础，论述了用该理论设计钻井机械的基本思路。按总体功能将钻井机械分解成一些具有特定功能的模块。提出了用面向对象的框架结构实现模块库知识表达的方法，针对面向对象的Ｃ＋＋语言介绍了模块化设计时的知识组织策略，以及建立模块库所要补充的几个类定义。给出了模块化设计钻井绞车的一个实例。
Based on the theory of modular design, this paper discusses the basic idea of using this theory to design drilling machinery. According to the overall function of the drilling machine broken down into a number of modules with specific functions. This paper presents a method to realize knowledge representation of module library by using object-oriented framework. It introduces the knowledge organization strategy of modularization design object-oriented C ++ language and some class definitions to be added when building module library. An example of a modular design drilling winch is given.