柯林斯詞典barrage balloon 1. N one of a number of tethered balloons with cables or net suspended from them, used to deter low-flying air attack 防空氣球; 一連串氣球中的一個(gè)，氣球上懸掛著纜繩或羅網(wǎng)，用來防止低空空襲 返回 barrage balloon劍橋詞典a large balloon , especially one of a group that is tied to the ground with metal ropes in order to stop enemy aircraft that are flying low （阻止敵機(jī)低飛的）阻塞氣球 返回 barrage balloon