PUSH — A momentary push button (most common event source)

PUSH —— 瞬时按钮（最常见的事件源）。

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Assigns a sequence number for this event, if one has not been set by the event source.

如果事件源没有设置序号的话，那么为这个事件分配一个序号。

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The WSDM event Format is organized into three categories for management event data: the event reporter, the event source, and situation data.

WSDM事件格式分为三种类型可用于管理事件数据：事件记录器，事件源和情形数据。

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News that the deputy first minister would be at the event, the source told me, came as news to Martin McGuinness himself.

BBC: What's behind Sinn Fein's royal angst?

At this event the open source community just jumped into the drivers seat for the next major wave of technology disruption, enablement, and adoption.

FORBES: Hadoop Alpha Geeks Disrupting The Rapidly Growing Big-Data Market

In any event, the prime source of Sudan's horrors is political.

ECONOMIST: Outsiders must help to end the latest horrors in Sudan