柯林斯词典radar /ˈreɪdɑː/ (radars) 1. N-VAR 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. 雷达 ...a ship's radar screen. …一艘船的雷达显示屏。 返回 radar剑桥词典a system that uses radio waves to find the position of objects that cannot be seen 雷达 Other vessels in the area show up on the ship's radar (screen ). 该船的雷达（屏幕）显示这一海域有其他船只。 习语beneath the/sb's radar on/off sb's radar 返回 radar