时区是数据本地化中的第二个因素，这仅仅是因为一些语言环境分布的地理区域很广。
Time zone is the second factor in the localization of data, simply because some locales span very large geographic regions.
传统的图像系统的处理对象是本地数据，需要通过网络下载实现远程数据本地化。
In traditional medical image system, the objects are local data and remote image sources must be downloaded through network before operation.
一旦数据本地化，由于是在本地机器上运行数据库，开发者就能大幅度的提高查询性能。
Once the data is local, by running database queries on the local machine developers are able to drastically improve performance.
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