只有那些服务器更新极为重要、客户端需要得到即时通知的重量级应用程序才需要本文所述技术。
It is only for those real heavyweight applications, where server updates are inevitable and clients need to be notified instantly, that you really need the techniques discussed in this article.
在更新版的技术标准出来，涉及到重要的技术内容修改时，精和会及时通知各客户。
When there is a replacement of standards which includes some amendments of important technical content, we will notify every customer in time.
在更新版的技术标准出来，涉及到重要的技术内容修改时，精和会及时通知各客户。
When there is a replacement of standards which includes some amendments of important technical content, we will notify every customer in time.
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