单词	photoreconnaissance
释义	photoreconnaissance noun pho·​to·​re·​con·​nais·​sance ˌfō-tō-ri-ˈkä-nə-zən(t)s   also  -sən(t)s : reconnaissance in which aerial photographs are taken Example Sentences Recent Examples on the Web As a lieutenant colonel in the Vietnam War, McGee flew 172 combat missions in the RF-4, a photoreconnaissance jet. Sig Christenson, San Antonio Express-News, 6 Dec. 2021 Word History First Known Use 1920, in the meaning defined above
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