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CET-4 CET-6 考研 TOEFL IELTS BNC: 7112 COCA: 4780

radar

noun
/ˈreɪdɑː(r)/
/ˈreɪdɑːr/
[uncountable]Idioms
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  1. a system that uses radio waves to find the position and movement of objects, for example planes and ships, when they cannot be seen雷达
    • They located the ship by radar.他们通过雷达确定了船只的位置。
    • a radar screen雷达显示屏
    compare sonar
    Extra Examples
    • The aircraft suddenly went off the radar.飞机突然从雷达显示屏上消失了。
    • The submarine is impossible to detect on radar.雷达不可能探测到这种潜艇。
    • navigation by radar通过雷达导航
    Topics Transport by waterc1, Transport by airc1
    Oxford Collocations Dictionaryadjective
    • enemy
    • police
    • airborne
    verb + radar
    • be equipped with
    radar + noun
    • operator
    • station
    • system
    preposition
    • by radar
    • on radar
    phrases
    • off the radar
    • on the radar
    See full entry
    Word Origin1940s: from ra(dio) d(etection) a(nd) r(anging).
Idioms
below/under the radar
  1. used to say that people are not aware of something在视线以外的;未引起注意的
    • Experts say a lot of corporate crime stays under the radar.专家说许多公司犯罪还没有为人所注意到。
    • The conflict has slipped below the radar of the mass media.冲突已经滑到了大众传媒的视线之下。
on/off the radar (screen)
  1. used to say that people’s attention is on or not on something受/不受人关注
    • The issue of terrorism is back on the radar screen.恐怖主义问题重新受人关注。
    • Since the scandal broke, all other issues seem to have disappeared off the radar screen as far as the media is concerned.自丑闻爆发以来,就媒体而言,所有其他问题似乎已从雷达屏幕上消失了。
CET-4 CET-6 考研 TOEFL IELTS BNC: 7112 COCA: 4780
CET-4 CET-6 考研 TOEFL IELTS BNC: 7112 COCA: 4780
CET-4 CET-6 考研 TOEFL IELTS BNC: 7112 COCA: 4780
CET-4 CET-6 考研 TOEFL IELTS BNC: 7112 COCA: 4780
CET-4 CET-6 考研 TOEFL IELTS BNC: 7112 COCA: 4780
CET-4 CET-6 考研 TOEFL IELTS BNC: 7112 COCA: 4780
CET-4 CET-6 考研 TOEFL IELTS BNC: 7112 COCA: 4780
CET-4 CET-6 考研 TOEFL IELTS BNC: 7112 COCA: 4780
CET-4 CET-6 考研 TOEFL IELTS BNC: 7112 COCA: 4780
CET-4 CET-6 考研 TOEFL IELTS BNC: 7112 COCA: 4780
radarradarD.J.:[ˈreidə]K.K.:[ˈredɑr]n.1.雷达The ship, with the help of radar, sailed in thick fog.船借助于雷达在浓雾中航行。They are following the flight of an aircraft by radar.他们正在用雷达追踪一架飞机的飞行。2.雷达装置Enemy ships were detected on the radar.敌舰的影像已显现在雷达上。
CET-4 CET-6 考研 TOEFL IELTS BNC: 7112 COCA: 4780
radar
ra·dar / 5redBr ; 5reIdB: /noun C,U
1. a piece of equipment that uses radio waves to find the position of things and watch their movement雷达;
sonar:
The coastline can now be monitored by radar.现在海岸线能用雷达监测。
We could see the plane quite clearly on the radar screen.在雷达屏幕上可清晰地看见飞机。
CET-4 CET-6 考研 TOEFL IELTS BNC: 7112 COCA: 4780
CET-4 CET-6 考研 TOEFL IELTS BNC: 7112 COCA: 4780
CET-4 CET-6 考研 TOEFL IELTS BNC: 7112 COCA: 4780

radar

radar /ˈreɪˌdɑɚ/ noun
plural radars
radar
/ˈreɪˌdɑɚ/
noun
plural radars
Learner's definition of RADAR
: a device that sends out radio waves for finding out the position and speed of a moving object (such as an airplane)雷达
[count]
[noncount]
often used figuratively in informal U.S. English在非正式美国英语中常用作比喻
CET-4 CET-6 考研 TOEFL IELTS BNC: 7112 COCA: 4780
CET-4 CET-6 考研 TOEFL IELTS BNC: 7112 COCA: 4780
CET-4 CET-6 考研 TOEFL IELTS BNC: 7112 COCA: 4780
CET-4 CET-6 考研 TOEFL IELTS BNC: 7112 COCA: 4780
CET-4 CET-6 考研 TOEFL IELTS BNC: 7112 COCA: 4780
CET-4 CET-6 考研 TOEFL IELTS BNC: 7112 COCA: 4780
CET-4 CET-6 考研 TOEFL IELTS BNC: 7112 COCA: 4780
CET-4 CET-6 考研 TOEFL IELTS BNC: 7112 COCA: 4780
CET-4 CET-6 考研 TOEFL IELTS BNC: 7112 COCA: 4780
CET-4 CET-6 考研 TOEFL IELTS BNC: 7112 COCA: 4780
CET-4 CET-6 考研 TOEFL IELTS BNC: 7112 COCA: 4780
CET-4 CET-6 考研 TOEFL IELTS BNC: 7112 COCA: 4780

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