对技术人员来说，主实体只能基于分布式模型来控制。
For technologists, the main entity can be controlled only based on the distributed model.
据此，提出编码主数据模型，在保持编码标识能力的基础上，增加了信息实体的属性元素项，丰富了信息实体的描述。
Accordingly, a main code data model is proposed. It increases information entities attributes and enriches information described while keeping information identity.
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