In this article, I discussed various approaches for simulating a server push, ranging from pure polling to a real-time server push, and noted the strengths and weaknesses of each approach.

这篇文章讨论了几种模拟服务器推送的方法，从纯轮询到实时服务器推送，文中说明了每种方法的优缺点。

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It is verified that the lunar probe can be navigated in real time by ranging data based on the local ground tracking site. The method and result of the research may serve as reference fort...

结果表明仅依靠局域的地面站，采用测距的方式，可以对探测器进行实时导航。

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The XO is packed with hyper-designed creativity worthy of Apple, including a unique software environment that lets kids collaborate in real time on applications ranging from a simple programming simulation to music-making programs (three come pre-installed) and even an application for using sonar to pinpoint the computer's distance from other nearby XOs.

FORBES: Magazine Article

The XO is packed with hyper-designed creativity worthy of Apple (nasdaq: AAPL - news - people ), including a unique software environment that lets kids collaborate in real time on applications ranging from a simple programming simulation to music-making programs (three come pre-installed) and even an application for using sonar to pinpoint the computer's distance from other nearby XOs.

FORBES: Intel Vs. The XO