Long polling is a polling technique in which the server will delay completing the HTTP response until either an update is ready for the client or a timeout occurs.

长轮询是一种轮询技术，其中服务器延迟完成HTTP请求，直至已经为客户机准备好了一个更新信息或发生超时。

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The electoral officials - who have apologised for the delay - say ballot papers have not been delivered in time to many polling stations.

尼日利亚官员称，议会选举因为组织不利而被推迟至星期一。

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The CAP schedules packet transmission based on the polling mechanism and dynamic TDMA, and a mini-slot is used to keep connectivity when an MT is idle, thus, the access delay is reduced.

CAP以轮询及动态tdma方式为各节点安排发送时隙，采用微时隙为处于空闲状态的节点保持连接以降低时延。

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Egypt's National Council for Human Rights (NCHR), an organization aimed at promoting human rights in Egypt, told the BBC they received 50 complaints on electoral violations ranging from delay in opening voing booths, to campaigning for candidates outside polling stations during voting.

BBC: Egyptians vote in landmark presidential election