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. 雷達 ...a ship's radar screen. …一艘船的雷達顯示屏。 返回 radar剑桥词典a system that uses radio waves to find the position of objects that cannot be seen 雷達 Other vessels in the area show up on the ship's radar (screen ). 該船的雷達（屏幕）顯示這一海域有其他船衹。 習語beneath the/sb's radar on/off sb's radar 返回 radar