收到生产指令之后，BPEL引擎就会执行合并的生产工作流程的所有步骤，我稍候再对此进行讨论。
After receiving the production order, the BPEL engine executes all the steps of the merged production workflow, which I discuss in a moment.
工作流程系统包括两个部分：一个工作流程指定工具，一个工作流程执行引擎。
A workflow system consists of two parts; a workflow specification tool and a workflow execution engine.
工作流引擎可以帮助开发人员建立一个业务过程的模型，使得应用能够按照过程所定义的信息流程来运行。
A workflow engine enables the developer to model a business process and allows the application to go with the flow of information defined by the process.
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