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

• 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。
• Our radar has pinpointed the planes.
  我们的雷达确定了飞机的精确位置。
• The airliner disappeared off their radar.
  那架班机从他们的雷达屏幕上消失了。
• The true time delay technology for optically phased array radar using the delay characteristics of optical fiber is presented.
  着重介绍了利用光纤的延迟特性实现光控相控阵雷达的实时延迟技术。
• The radar signal simulation is mainly used to simulate the signal of the target and its condition.
  雷达信号模拟主要是对雷达目标和环境回波信号的模拟。
• 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。
• All modern vessels of any size are fitted with radar installations.
  所有现代化船只都有雷达装置。
• 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。
• 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。
• 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。