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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