The service Invoke primitive has a property that, when specified, prevents the mediation flow component from using the asynchronous with callback style for the service invocation.
服务调用原语具有一个属性，在指定该属性时，可以防止中介流组件对服务调用使用带有回调的异步调用样式。
2
When the service sends its response, a new instance of the mediation flow continues processing from the service invoke primitive that performed the service invocation.
当服务发送其响应时，新的中介流实例继续从执行服务调用的服务调用原语进行处理。
3
In this respect, Part 2 of this series examines in more detail the usage of one of the new primitives, the service invoke primitive.