但是在64位的系统中，日期是使用有符号的64位整数表示的，这可以极大地扩充其可用范围。
But in 64-bit systems, dates are expressed as signed 64-bit integers, which extends the usable range.
横向和纵向的扩充现在并没有在OVF规范里得到充分覆盖，不过范围可以在服务描述里定义。
Horizontal and Vertical scaling are currently not covered in detail by the OVF specification, although ranges can be defined in the service description.
DataNucleus将JPOX的范围扩充到应用数据管理领域，以支持更广泛的数据、APIs、服务，以及最终提供数据分析工具。
DataNucleus extends the scope of JPOX to the application data management domain intent on supporting a wide range of datastores, APIs, services, as well as eventually providing data analysis tools.
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