This is an undated photo provided by Boeing of the Boeing 737-400 aircraft.

这是一张波音公司提供的未标明日期的波音737 - 400型飞机的照片。

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May 23, 2010: A photo of a Chinese Air Force Boeing 737, equipped as a reconnaissance aircraft, recently appeared on a Chinese blog.

2010年5月23日：最近在中国博客上出现一张中国空军的波音737照片，装备当作一架侦察飞机。

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My favorite example of this occurred a decade ago, when Boeing convinced the intelligence community that it could build the next generation of photo-reconnaissance spy satellites better than 40-year incumbent Lockheed Martin could.

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