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美国内华达州内利斯空军基地，红旗 15-1 联合空战演习中，来自英国莱肯希思空军基地的美国空军第493战斗机中队的 F-15C 战斗机向跑道滑行。（An F-15 Eagle assigned to the 493rd Fighter Squadron, Royal Air Force Lakenheath, England, taxis for flight during Red Flag 15-1 at Nellis Air Force Base, Nev., Jan. 27, 2015. Flying units from around the world come to Nellis AFB to participate in Red Flag exercises, which are held three to four times per year.）