You can also nest subflows as well as promote internal subflow properties to the level of the parent flow, allowing dynamic control of subflow processing.

还可以嵌套子流并将内部子流属性提升到父流的高度，允许动态控制子流处理。

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Subflows, introduced in v6.2 of Process Server and WESB, are a way of capturing a set of mediation steps (primitives, like the ones in Figure 15) in a re-useable flow fragment.

Process Server和WESB v6.2中引入的子流指一种在可重用流片段中捕捉一组中介步骤(原语，如图15所示)的方式。

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