本文讨论了基本数据管理系统的一个重要问题。
This paper treats an important problem in data-base management systems.
经实践检验，数控车间管理系统基本能够贴近车间应用需求，可以满足车间基本数据管理要求，并有效改善车间管理无序状况。
It is proved that the NC workshop's management system can satisfy the practical requirements of NC workshop and it is useful to improve the workshop's management disorder.
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