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美国华盛顿州安吉利斯港海岸警卫队航空站，美国海岸警卫队一架 MH-65C 直升机在加注燃油。（Petty Officer 3rd Class Nicholas Hyght, an aviation maintenance technician assigned to Coast Guard Air Station Port Angeles, Wash., fuels an MH-65 Dolphin helicopter at the air station, Aug. 19, 2014. Aviation maintenance technicians are responsible for the overall inspection, maintenance and repair of Coast Guard aircraft and their systems. U.S. Coast Guard photo by Petty Officer 3rd Class Katelyn Shearer.）