单词	detector
释义	detector noun de·​tec·​tor di-ˈtek-tər  : one that detects: such as a : a device for detecting the presence of electromagnetic waves or of radioactivity b : a rectifier of high-frequency current used especially for extracting the intelligence from a radio signal Synonyms sensor See all Synonyms & Antonyms Example Sentences using metal detectors to improve safety at airports a motion detector to thwart burglaries Recent Examples on the Web Players, including Niemann, were wanded with a metal detector. Andrew Beaton, WSJ, 8 Sep. 2022 Turns out a man with a metal detector saw her social media plea for help — and somehow found that ring at the bottom of the ocean. Fox News, 21 Aug. 2022 Teal posted about the ordeal on Facebook and asked anyone who might frequent the beach with a metal detector to be on the lookout. CBS News, 20 Aug. 2022 Most versions of lidar use a single laser with a detector. Wired, 13 Aug. 2022 Planning for the detector began nine years ago with its fabrication at the Sanford Laboratory in South Dakota beginning two years later. Robert Lea, Popular Mechanics, 29 July 2022 The team wanted to see if being multi-modal also made A.I. systems more robust, better able to withstand attacks by malicious actors who might want to sneak their misinformation past the detector. Jeremy Kahn, Fortune, 21 June 2022 According to Watt, the airport's new biosecurity detector dog, Zinta, uncovered the meat last week in a backpack of a passenger arriving from Indonesia. Natalie Neysa Alund, USA TODAY, 1 Aug. 2022 Lovelock's contributions to environmental science included developing a highly sensitive electron capture detector to measure ozone-depleting chlorofluorocarbons in the atmosphere and pollutants in air, soil and water. Jill Lawless, ajc, 27 July 2022 See More Word History First Known Use 1541, in the meaning defined above Phrases Containing detector lie detector metal detector smoke detector radar detector lie detector metal detector smoke detector radar detector Medical Definition detector noun de·​tec·​tor di-ˈtek-tər  : one that detects especially : a device for detecting the presence of electromagnetic waves or of radioactivity detector noun as in sensor a device that detects some physical quantity and responds usually with a transmitted signal a motion detector to thwart burglaries Synonyms & Similar Words Relevance sensor alarm trigger electric eye photoelectric cell eye alarum Phrases Containing detector lie detector lie detector
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