然而，如果资源管理器未能应答，则在假定事务应中断之前，事务管理器可以重新传输准备流。
However, if a resource manager fails to reply, the transaction manager may re-transmit the prepare flow before assuming the transaction should be aborted.
在可中断流情况下，通过使用Invoke活动发送请求，并使用Receive活动接收应答，从而实现双向异步服务。
In the case of interruptible flows, you can handle the two-way asynchronous services by using an Invoke activity to send the request and a receive activity to receive the reply.
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