Alo on display will be electronic engine control, currently in production to upgrade CH-47 and UH-60 helicopter engine for the U.S. Army and National Guard.

同时展出的还将有发动机控制电子装置，目前正在生产并用于升级美国陆军和国民警卫队的 CH-47 和 UH-60 直升机发动机。

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Guard conditions control which transition, among a set of alternatives, is triggered by the completion of an activity.

守卫条件控制着在某项活动完成后触发一套备选方案中的哪一个跃迁。

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Where damage has been identified, it has been cracking high in the dam and where additional features such as curbs, railings, gates, or guard or control houses are located.

在大坝确认收到破坏的部位，大都是在较高部位出现裂缝，那里的特点是附设有连接装置，护栏，泄水闸门，警卫室或控制室等。

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Finally the state governor sent National Guard troops who took control in Homestead.

VOA: special.2009.07.13

At least since the eighteenth century, these lines have been singled out for their beauty and, considering that Milton is describing the hideous demons under Satan's control, the pastoral elegance of this little simile really catches us off guard.

至少从19世纪起，这些句子因为它们的美感经常被单列出来，并被认为是弥尔顿在描述撒旦控制下的可怕的恶魔,这个小比喻诗歌上的优雅,确实使我们毫无防备。

耶鲁公开课 - 弥尔顿课程节选

"It is vitally important that the FAA make extra efforts to guard air traffic control facilities because our national security is at stake, " NATCA President John Carr said in a statement.

CNN: Union claims security lax at many air control towers

And, I really think it was those photographs, the impact of those photographs internationally, during a time of the Cold War, when, the actuality of some of what America didn't talk about, was shown to the world, that that is what made the president act, take federal control of the Arkansas National Guard, and send paratroopers to Little Rock.

CNN: Eckford: Central High in 1957 'was not ... a normal environment'

We have a Coast Guard cutter out there conducting command and control, helicopters for surveillance.

WHITEHOUSE: Daily Press Briefing