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The Air Force quickly became the think tank's main contractor, and Rand began consulting on everything from propeller turbines to missile defense.

空军很快成为了这家智库的主要承包商，兰德开始就从螺旋桨涡轮到导弹防御等一切问题进行咨询。

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And the Air Force currently uses radar developed by DeTect at several bases.

VOA: special.2009.04.01

So like, right now, I'm kind of looking into the military and the air force

所以现在我想参军和空军，

我要当女军人 - SpeakingMax英语口语达人

And Virgil Grissom,of the Air Force, worked on Mercury's electrical systems.

VOA: special.2009.06.10

He joined the Air Force in 1954 and later changed his name to Sam Bishop.

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The father, believed to be in the Air Force, was returning home, Richardson said.

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Dr. Jeff McNeil, a major in the Air Force, works to get the bleeding under control.

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