Ultimately, it must loop though all involved services in the same way, and finally, generate the response XML document, and send it back to the requesters.
它必须最终采用相同的方式执行所有涉及到的服务，并最后生成响应XML文档，再将该文档发送回请求程序。
2
To avoid an infinite loop, the restore request should be sent only when the current page was generated in response to a GET request.
要避免发生无限循环，只有在响应GET请求而生成当前页面时发送恢复请求。
3
It then iterates over the elements in the response, processing each one using a foreach loop and retrieving the information shown in Figure 1.