Radar is a way of discovering the position or speed of objects such as aircraft or ships when they cannot be seen, by using radio signals.
例句
Pilots complained that the radars in the Mirages malfunctioned during conditions of high humidity...飛行員抱怨說在高濕度條件下，“幻影”戰斗機上的雷達出現了故障。The aircraft was on a flight from Milan when it disappeared from radar screens.飛機是在從米蘭出發的飛行途中從雷達屏上消失的。
英漢詞典釋義
n.
雷達
The ship, with the help of radar, sailed in thick fog.船借助于雷達在濃霧中航行。They are following the flight of an aircraft by radar.他們正在用雷達追蹤一架飛機的飛行。
雷達裝置
Enemy ships were detected on the radar.敵艦的影像已顯現在雷達上。
英英詞典釋義
Noun
1. measuring instrument in which the echo of a pulse of microwave radiation is used to detect and locate distant objects