Word · Frequency #7112
radars
雷达,无线电探测器
radars is the plural of radar.
核心释义
a system that uses radio waves to detect and locate objects such as aircraft or ships
- 1.
全称为初级雷达:通过分析发向物体并从其表面反射的无线电波(通常是微波)来探测远处物体并确定其位置、速度或其他特征的方法;也是研究该方法的领域
In full primary radar: a method of detecting a distant object and determining its position, velocity, or other characteristics by analysing radio waves (usually microwaves) which are sent towards the object and which reflect off its surfaces; also, the field of study of this method.
- 2.
通常由描述词修饰:基于分析反射信号(如光波或声波)而非无线电波的自然(例如动物如蝙蝠)或人造探测方法;(可数)此类方法的实例
Often preceded by a descriptive word: a natural (for example, in an animal such as a bat) or human-made detection method based on the analysis of reflected signals other than radio waves, as light waves or sound waves; (countable) an instance of this.
- 3.
卓越的探测能力;意识,直觉
A superior ability to detect something; an awareness, an intuition.
全称为初级雷达:通过分析发向物体并从其表面反射的无线电波(通常是微波)来探测远处物体并确定其位置、速度或其他特征的方法;也是研究该方法的领域;通常由描述词修饰:基于分析反射信号(如光波或声波)而非无线电波的自然(例如动物如蝙蝠)或人造探测方法;(可数)此类方法的实例;卓越的探测能力;意识,直觉;雷达;无线电探测器;[计] 雷达图
用法In use
The airport uses radar to track incoming flights.
用法提示:本句中'radar'作名词,指用于检测和跟踪飞机位置的设备。
Some drivers rely on radar detectors to avoid speeding tickets.
用法提示:本句中'radar'作名词,与'detectors'连用,指探测雷达信号的装置。
Military radars can detect objects hundreds of kilometers away.
用法提示:本句中'radars'是复数形式,指多种雷达系统。
detect/track sth with radar
表示使用雷达作为工具来检测或追踪目标。
The air traffic controller tracked the plane with radar.
空中交通管制员用雷达追踪那架飞机。
appear on radar
常用于气象或航空语境,表示目标被雷达探测到。
相关词与表达Connections
搭配Collocations
- radar screen
- 雷达屏幕
- The plane disappeared from the radar screen.飞机从雷达屏幕上消失了。
- radar detector
- 雷达探测器
- He installed a radar detector in his car to avoid speeding tickets.他在车上安装了雷达探测器以避免超速罚单。
- radar gun
- 雷达测速枪
- The police officer used a radar gun to check the speed of passing vehicles.警察用雷达测速枪检查过往车辆的速度。
- radar system
- 雷达系统
- The airport uses an advanced radar system to track aircraft.机场使用先进的雷达系统跟踪飞机。
- radar image
学习提示Learner notes
记忆技巧Memory Tip
雷达的英文radar,可拆解为rad(发射)和ar(返回),形象记忆其工作原理。
语境与语域Context & Register
[object Object]
语法说明Grammar Note
可数名词,指雷达设备
发音与拼写Pronunciation & Spelling
These words share the -ar spelling ending with radar, but their pronunciation (/ɑːr/) differs from radar's (/ˈreɪdə/). They are not rhymes.
用法优先级Usage priority
Collins 词频等级为 2,建议结合例句记忆,而不是只背中文释义。
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Dictionary facts from ECDICT, WIKTIONARY.