radar

英 [ˈreɪdɑː(r)]

美 [ˈreɪdɑːr]

n.  雷达

复数：radars　

CET4CET6考研TOEFLIELTSTEM4TEM8计算机

Collins.2 / BNC.7112 / COCA.4780

习惯用语

n.

on/off the radar screen
• 受 / 不受人关注
  used to say that people's attention is on or not on sth
• The issue of terrorism is back on the radar screen.
  恐怖主义问题重新受人关注。

牛津词典

noun

• 雷达
  a system that uses radio waves to find the position and movement of objects, for example planes and ships, when they cannot be seen
  1. They located the ship by radar.
     他们通过雷达确定了船只的位置。
  2. a radar screen
     雷达显示屏

柯林斯词典

• N-VAR 雷达;无线电定位装置
  Radaris a way of discovering the position or speed of objects such as aircraft or ships when they cannot be seen, by using radio signals.
  1. Pilots complained that the radars in the Mirages malfunctioned during conditions of high humidity...
     飞行员抱怨说在高湿度条件下，“幻影”战斗机上的雷达出现了故障。
  2. The aircraft was on a flight from Milan when it disappeared from radar screens.
     飞机是在从米兰出发的飞行途中从雷达屏上消失的。

英英释义

noun

• measuring instrument in which the echo of a pulse of microwave radiation is used to detect and locate distant objects
  Synonym:microwave radarradio detection and rangingradiolocation

双语例句

• Design of a digital signal processor for pulsed Doppler radar;
  提出了一种脉冲多普勒雷达数字信号处理机机内测试方法。
• Our radar has pinpointed the planes.
  我们的雷达确定了飞机的精确位置。
• The ship's radar scanned the sea ahead.
  船上的雷达扫描了前方的海域。
• We kept it under the radar.
  我们在雷达下面保持了它。
• The aircraft was on a flight from Milan when it disappeared from radar screens.
  飞机是在从米兰出发的飞行途中从雷达屏上消失的。
• The jam principle is analyzed using the carrier-free UWB radar as the study object.
  以无载频超宽带雷达为研究对象，分析了该干扰新技术的机理。
• This paper has summed up the development and new application of ground-searching radar in recent years.
  作者对近年来探地雷达的技术发展及新的应用研究进行了概括和总结。
• But a thorough study of electricity in the atmosphere was not possible until the development of radio and radar.
  但对大气中电的全面研究直到研制出无线电和雷达之后才成为可能。
• This paper describes in details some typical artillery locating radars worldwide and analyzes the trend of this radar.
  文章比较详细地介绍了国外几种典型的火炮定位雷达，并且分析研究了火炮定位雷达的发展趋势。
• The optical radar is one of the main equipments in shooting range test outside trajectory measurement system.
  光学雷达是靶场试验外弹道测量系统中的主要设备之一。