| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024de•tec•tion (di tek′shən),USA pronunciation n. - the act of detecting.
- the fact of being detected.
- discovery, as of error or crime:chance detection of smuggling.
- Telecommunications
- rectification of alternating signal currents in a radio receiver.
- Also called demodulation. the conversion of an alternating, modulated carrier wave or current into a direct, pulsating current equivalent to the transmitted information-bearing signal.
- Late Latin dētēctiōn- (stem of dētēctiō), equivalent. to Latin dētēct(us) (see detect) + -iōn- -ion
- late Middle English 1425–75
Collins Concise English Dictionary © HarperCollins Publishers:: detection /dɪˈtɛkʃən/ n - the act of discovering or the fact of being discovered
- the act or process of extracting information, esp at audio or video frequencies, from an electromagnetic wave
See also demodulation
de•tect /dɪˈtɛkt/USA pronunciation v. [~ + object]- to discover or notice the existence of; find or find out:to detect the odor of gas.
- to discover (a person) in an act:to detect someone cheating.
- to discover the true nature of:I detected a note of pity in her voice.
de•tect•a•ble, de•tect•i•ble, adj. de•tec•tion /dɪˈtɛkʃən/USA pronunciation n. [uncountable] de•tec•tor, n. [countable] WordReference Random House Unabridged Dictionary of American English © 2024de•tect (di tekt′),USA pronunciation v.t. - to discover or catch (a person) in the performance of some act:to detect someone cheating.
- to discover the existence of:to detect the odor of gas.
- to find out the true character or activity of:to detect a spy.
- Telecommunications
- to rectify alternating signal currents in a radio receiver.
- to demodulate.
- Latin dētēctus (past participle of dētegere), equivalent. to dē- de- + teg(ere) to cover + -tus past participle suffix
- late Middle English 1400–50
- 2.See corresponding entry in Unabridged See learn.
|