n. 〔美国〕【无线电】 〔radio detecting and ranging 之略〕 雷达，无线电探测器 (＝〔英国〕 radiolocator)。 air search radar 防空[空中搜索]雷达。 air surface vessel radar 飞机用水面舰船搜索雷达。 beam-transmitter radar 定向瞄准雷达。 missile radar 弹载雷达；跟踪导[飞]弹的雷达。 long-range radar 远程雷达。 radar control 雷达控制。 radar installation 雷达装置。 laser radar 激光[镭射]雷达。 a radar set 雷达装置。 below [beneath] the radar 不引人注意，在视线之外。 ★ radar 是不可数名词。
measuring instrument in which the echo of a pulse of microwave radiation is used to detect and locate distant objects 同义词：microwave radar, radio detection and ranging, radiolocation,
Radar is an object detection system which uses radio waves to determine the range, altitude, direction, or speed of objects. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain.
例句与用法
1.
Enemy planes were picked up by our radar . 敌机被我们的雷达发现了。
2.
Densities presumably can be probed by radar . 利用雷达也许还能探测出密度。
3.
The pervading tone in the radar room was calm . 雷达室内总是保持着平静的气氛。
4.
They picked up the yacht on their radar screen . 他们在雷达屏上看到了那艘游艇。
5.
They were able to position the yacht by means of radar . 他们能够用雷达测定快艇的方位。
6.
All modern vessels of any size are fitted with radar installations . 所有现代化船只都有雷达装置。
7.
Radar and other inventions were the work of "boffins" . 雷达以及其它种种发明都是科学工作者们的成果。
8.
It is guided to its destination by radio and radar control . 它是通过无线电和雷达控制装置而导向其指定目标的。
9.
Their signal service was rudimentary. radar was unknown to them . 他们的通信设施很不健全，他们还不知道有雷达。
10.
He thought that a flock of birds was causing dots on his radar screen . 他以为这是一群鸟在他的屏幕上形成的光点。
您当前位置：