Data persistence services: These services perform data activities that are traditionally relegated to the database management system, such as create, read, update and delete.

数据保存服务：这些服务执行传统地归属于数据库管理系统的数据活动，例如创建、读取、更新和删除。

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The locking semantics are designed to prevent persistence services that run in two different processes from loading the same workflow instance into memory at the same time.

锁定语意的设计是为了避免两个不同处理序中执行的持续性服务，同时将相同的工作流程执行个体载入记忆体中。

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These services include event data persistence, event format conversion, integration with the complex event processing engine, administrative services, and others.

这些服务包括事件数据的持久性、事件格式转换、与复杂事件处理引擎的集成、行政服务，等等。

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Yet despite the law's failure to keep many open gays out, the ban's persistence means that gay troops are subject to random dismissals and are often unable to access military support services for fear of being found out and fired.

CNN: Commentary: Allow gays to serve openly in military