noun
Distant Early Warning Line; DEW Line
A Cold War-era radar line across northern Canada and Alaska, jointly operated by the US and Canada. Used as a proper noun in historical and military contexts.
遠距離早期警戒線は冷戦期に北極圏に設置された。
The Distant Early Warning Line was set up in the Arctic during the Cold War.
A direct translation of the English term 'Distant Early Warning Line', composed of 遠距離 (long distance), 早期 (early stage), 警戒 (warning/vigilance), and 線 (line).