On the base of analyzing the principle of original air compressor system, remolding system is put forward concerned with frequency conversion driving for air compressor.

在分析原空压机系统工作原理的基础上提出了空压机系统变频驱动改造方案。

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He flies an A-10 Warthog out of a forward air base in south central Iraq and has just come back from a mission over Baghdad.

CNN: War stories: Donut in a Warthog

And while we are in Alaska he'll take that opportunity to speak to some troops at Elmendorf Air Force Base, and he's looking forward to that opportunity to visit with the troops there and to thank them for their service.

WHITEHOUSE: THE WHITE HOUSE