第三，很难在支持多个角色的同时仍维护数据完整性。
Third, it is difficult to support multiple roles and still maintain data integrity.
创建数据相关性以支持资源关系。
Create a data correlation to support the resource relationship.
上述两种可能性均有一些数据支持，但也存在这样一种可能，即它们是在同步运行。
There is some data to support both possibilities, and it's possible that they work in concert.
数据可用性：所有相关数据都在文章及其支持信息文件中。
Data Availability: All relevant data are within the paper and its Supporting Information files.
数据可用性：所有相关数据都在文章及其支持信息文件中。
Data Availability: All relevant data are within the paper and its Supporting Information files.
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