本文重点介绍了有关全局数据模型的模型运算研究工作。
The emphasis of the paper is the research of model operation of global data model.
文中描述了全局数据模型运算的定义、全局数据模型语言中模型运算操作的实现方法等。
We particularly describe the definition of model operation of global data model, the implementation method of model operation in the global data model language.
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