Word · Frequency #6230
detector
探测器；检测器；感应器
核心释义
A device that detects or registers a specific substance, signal, or physical phenomenon such as heat, light, or motion, often sounding an alarm.
- 1.
能够检测特定物质或物理现象的装置,可选地发出警报或触发警告。
A device capable of registering a specific substance or physical phenomenon, and that optionally sounds an alarm or triggers a warning.
- 2.
接收信号或刺激并以特有方式响应的装置
any device that receives a signal or stimulus (as heat or pressure or light or motion etc.) and responds to it in a distinctive manner
- 3.
从无线电载波中提取调制的整流器
rectifier that extracts modulation from a radio carrier wave
- 4.
探测无线电信号或放射性的电子设备
electronic equipment that detects the presence of radio signals or radioactivity
无线电/辐射探测器；检波器；能够检测特定物质或物理现象的装置,可选地发出警报或触发警告。；接收信号或刺激并以特有方式响应的装置；从无线电载波中提取调制的整流器
用法In use
The smoke detector went off when I burned the toast.
用法提示：探测器用作名词，指一种检测烟雾的设备。
Airport security uses metal detectors to scan passengers.
用法提示：金属探测器指用于检测金属物体的设备。
A motion detector automatically turns on the lights when someone enters the room.
用法提示：运动探测器指检测移动的装置。
detector of [sth]
表示探测器检测的对象。
The smoke detector of the new model is highly sensitive.
新型号的烟雾探测器非常灵敏。
detector for [sth]
表示探测器的用途。
相关词与表达Connections
搭配Collocations
- smoke detector
- 烟雾探测器
- Make sure to test your smoke detector monthly.确保每月测试你的烟雾探测器。
- metal detector
- 金属探测器
- The security guard used a metal detector to check the bags.保安用金属探测器检查了包。
- lie detector
- 测谎仪
- The suspect refused to take a lie detector test.嫌疑人拒绝接受测谎仪测试。
- gas detector
- 气体探测器
- A gas detector can alert you to dangerous leaks.气体探测器可以提醒你注意危险泄漏。
- motion detector
- 运动探测器
学习提示Learner notes
记忆技巧Memory Tip
想象寻宝者用金属探测器（detector）在地上探测，听到“嘀嘀”声，找到宝藏，记住“detect”是探测，“or”是东西。😊
语境与语域Context & Register
通常用于技术、科学或电子领域，指检测信号或刺激的设备。
语法说明Grammar Note
可数名词，复数形式为detectors。
发音与拼写Pronunciation & Spelling
All words share the stressed vowel /ɛ/ and following sounds /ktɚ/, so they rhyme exactly. Beware of words like 'debtor' (/dɛtɚ/) which look similar but have different stress and lack /k/.
用法优先级Usage priority
Collins 词频等级为 1，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.