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第142战斗机联队（142FW）F-15C 战斗机在“银汞飞镖-2009”综合防空演习中准备从波特兰空中国民警卫队基地起飞，演习旨在快速发现并击败空中威胁。（A U.S. Air Force F-15 Eagle from the 142nd Fighter Wing, Portland Air National Guard Base, Ore., prepares for takeoff before a mission in support of Amalgam Dart 2009, June 19. Amalgam Dart is a field test of the Department of Defense's ability to rapidly deploy a total air integrated defense system in the U.S. in order to deter, detect and defeat airborne threats.）

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