(Askeri) ÇİĞ HATTI: Kuzey Amerika kıtası yetmişinci enlem çizgisi üzerinde Uzak Mesafe Erken ikaz sistemi olarak kurulmuş radar istasyonları hattı
الإنجليزية - الإنجليزية
تعريف dew line في الإنجليزية الإنجليزية القاموس.
The Distant Early Warning Line, a series of radar stations, located north of the Arctic Circle and extending from Alaska to Baffin Island, operated by American and Canadian authorities from the late 1950s to the early 1990s to help protect North America by detecting incoming hostile missiles and aircraft