Ajax应用程序可充分利用这一点，模拟实时服务器推送技术。
Ajax applications can make full use of that to simulate a real-time server-push feature.
有了这三个技术，实时地从服务器自动地将数据推送到客户端很容易实现。
With these three technologies it's really easy to automatically push data from the server to the client in real time.
Comet是一种事件驱动的低延迟数据传输技术，通过HTTP传输协议使用服务器推送机制。
Comet is a low latency data transfer technique that is event driven and USES the server push mechanism over the HTTP protocol.
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