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

• Radar is used for tracking planes and ships.
  雷达用来追踪飞机和船只。
• Firstly, the signal model of coherent distributed targets for bistatic MIMO radar is established.
  建立了双基地MIMO雷达相干分布式目标信号模型；
• 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 planes are fitted with a device that absorbs enemy radar signals.
  飞机上安装了一个吸收敌方雷达信号的装置。
• The radar chart method is improved and applied to the synthetic evaluation of power quality.
  对雷达图法进行了改进，并应用于电能质量的综合评估中。
• This paper analyzed the radar recognition ability of two kinds of air targets, i.e.helicopter and fixed-wing aircraft.
  分析了雷达对直升机和固定翼飞机这两类空中目标的识别能力。
• Our radar has pinpointed the planes.
  我们的雷达确定了飞机的精确位置。
• Our radar began tracking the jets
  我们的雷达开始追踪喷气式飞机的动向。
• 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。
• 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。