This is similar to long polling in that there is no latency.

An alternative to this technique is long polling, which can avoid both these problems.

该技术的另一种方案就是长轮询，可以避免这两个问题。

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There are two basic types of polling channels, short and long polling.

有两种基本的轮询管道：短轮询与长轮询。

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Bayeux implementations support a specific HTTP method called long polling.

Bayeux实现支持一种名为长轮询的特定HTTP方法。

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Another common technique is long polling.

另一个常见的技巧是长轮询。

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For example an RTMP channel could be specified, but if that connection fails it could fail back to a long polling channel.

例如，可以指定RTMP管道，但如果该连接失败，就回到长轮询管道。

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In a long polling request, a client sends a request to a server to retrieve available information.

在长轮询请求中，客户机向服务器发出一个请求来检索可用信息。

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The dose problem is still the key issues which restrict the use of ancient formulas in today.

但是历年来“剂量是中医之不传之秘”，时至今日剂量问题仍然是羁绊古方今用的关键性问题。

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Perovskite-type ferroelectric thin films have received great attention as one kind of functional materials over the years.

钙钛矿型铁电薄膜作为一种功能材料，历年来都受到国内外学者的广泛关注。

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Over the years, the southeast coastal areas have been affected by the typhoon disaster frequently.

历年来东南沿海地区频遭台风灾害的侵袭。

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The Bermuda Triangle is famous for mysterious disappearances that have taken place there over the years.

百慕大三角因历年来频繁发生离奇失踪事件而闻名。

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The production, technical and economic indexes and waste heat utilization over the years are given.

列举了历年来江苏省硫酸工业的产量、技术经济指标和余热利用情况。

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There is economic uncertainty every year, but this year it seems to be especially virulent.

历年来美国的经济都充满了变数，但是今年以来其经济似乎病入膏肓了。

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The Report of the Investigations of the Human Intestinal Parasites in Henan Province from 1974 to 1980

历年来（1974～1980）河南省各地人群肠寄生虫调查报告

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Methods To analyze experience and lessons of reform of medical health work in recent years.

方法：分析历年来的医疗卫生工作改革发展的经验教训。

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For years Cooper has been demonstrating a healthy and strong financial momentum for continuous development.

历年来库柏都拥有着健康并良好的财务状况，这保障了库柏稳步持续的发展。

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O? Reilley has published excellent books about programming languages and tools for years.

O'Reilley历年来出版了一些有关编程语言和工具的优秀书籍。

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And list the Crodyceps having been discovered in this area during the past years.

并列出了历年来滇黔桂喀斯特地区发现的虫草菌。

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Objective: To comprehend the study achievement and progress on chemical component of lily.

目的：了解中药百合历年来化学成分方面研究成果及进展。

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The article summarizes the researches on adjective reduplication in Chinese in the past.

从语法结构、语法功能、语法意义和语音变化等角度全面总结了历年来有关汉语形容词重叠的研究概况。

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Methods The epidemic reporting data of the infectious diseases of Beijing was analysed.

方法整理分析历年来传染病疫情报告资料，并通过漏报率调查来校正乙肝报告发病率。

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