Information coding can standardize the information identity, however, it is lack of capacity in information expression, which limits the role of information coding.
信息编码具有信息标识标准化的能力，但是在信息表达上能力不足，限制了信息编码的作用。
Accordingly, a main code data model is proposed. It increases information entities attributes and enriches information described while keeping information identity.
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.
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。
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