This means that the traditional "replay until acked" portion of WS-RM does not need to be used or even implemented by an endpoint that wishes to simply support this message retrieval mechanism.
这意味着，对于希望直接支持此消息检索机制的端点而言，并不需要使用(甚至不需要实现)传统的WS - RM“在得到确认前重发”部分内容。
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