de·tec·tor /dɪˈtɛktɚ/
  發現者,檢出器,檢電器
  de·tec·tor /dɪˈtɛktɚ/ 名詞
  檢測器
  detector
  光檢測器
  detector
  檢測器
  De·tect·or n.  One who, or that which, detects; a detecter.
     A deathbed's detector of the heart.   --Young.
  2. Specifically: (a) An indicator showing the depth of the water in a boiler. (b) Elec. A galvanometer, usually portable, for indicating the direction of a current. (c) Elec. Any of various devices for detecting the presence of electric waves.
  Bank-note detector, a publication containing a description of genuine and counterfeit bank notes, designed to enable persons to discriminate between them.
  Detector lock. See under Lock.
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  detector
       n 1: 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 [syn: sensor, sensing element]
       2: rectifier that extracts modulation from a radio carrier wave
          [syn: demodulator]
       3: electronic equipment that detects the presence of radio
          signals or radioactivity