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

• Firstly, the continuous value information system to radar jamming effect evaluating is presented.
  首先，构建了雷达干扰效果评估的连续值型信息系统。
• Micro-Doppler provides a new way for radar target recognition while the translation velocity affects the extraction of micro-Doppler information.
  微多普勒为雷达目标识别提供了一种新的思路和方法，而目标的平动速度会影响微多普勒信息的提取。
• At some stage he left the Artillery to command a radar unit.
  有段时间他离开了炮兵部队去指挥一支雷达小分队。
• We kept it under the radar.
  我们在雷达下面保持了它。
• 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。
• 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。
• 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。
• 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。
• Radar is used for tracking planes and ships.
  雷达用来追踪飞机和船只。
• 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。