持久性类封装对持久性存储的访问，包括关系数据库、平面文件和对象库。
Persistence classes encapsulate access to your persistent stores, including relational databases, flat files, and object bases.
EcoSpace能包含将对象写入DB 2数据库的“持久性处理程序”。
The EcoSpace can contain 'persistence handlers' that can write the objects away to a DB2 database.
Python的pickle为python对象有效的持久性管理提供了健壮的和可靠的基础。
Python pickles provide a robust and reliable foundation for effective persistence management of Python objects.
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