This allows the process engine to act as an orchestration engine between the different services that are accessible through the service bus.

这样，流程引擎可以作为不同服务之间的编排引擎，这些服务可以都通过服务总线访问到。

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This means that WCF developers can take advantage of BizTalk Server capabilities such as the orchestration engine and the business rules engine to automate service routing.

这意味着WCF开发人员能够利用BizTalk Server的能力，如编制引擎和业务规则引擎，自动地完成服务的路由。

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Figure 8 Implementing composite service using orchestration engine.

图8用编制引擎(Orchestration Engine)实现复合服务。

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