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  1. radar

    • IPA[ˈreɪdɑː]

    英式

    • n.
      a system for detecting the presence, direction, distance, and speed of aircraft, ships, and other objects, by sending out pulses of radio waves which are reflected off the object back to the source.;an apparatus used for radar.
    • noun: radar, plural noun: radars

    • 釋義
    • 相關詞

    名詞

    • 1. a system for detecting the presence, direction, distance, and speed of aircraft, ships, and other objects, by sending out pulses of radio waves which are reflected off the object back to the source.
    • an apparatus used for radar.
    • a person's capacity for intuitive perception; a special sensitivity for factors, trends, etc. keep your radar tuned to changes at work
    • used to indicate that someone or something has or has not come to the attention of a person or group he's off the radar in the UK but in his country of birth he's a well-known figure
    • n.
      a handheld radar device used by traffic police to estimate the speed of a passing vehicle.

    Oxford American Dictionary

    • n.
      an area of road in which radar is used by the police to detect vehicles exceeding a speed limit.

    Oxford Dictionary

    • n.
      the branch of astronomy that uses radar to map the surfaces of planetary bodies in the solar system.

    Oxford American Dictionary

    • n.
      a handheld device used by traffic police to estimate the speed of a passing vehicle.

    Oxford Dictionary

    • n.
      a speed trap in which police use radar.

    Oxford American Dictionary

    • n.
      a radar tracking system using the Doppler effect to determine the location and velocity of a ...

    Oxford American Dictionary

    • 更多解釋
    • IPA[ˈrāˌdär]

    美式

    • n.
      a system for detecting the presence, direction, distance, and speed of aircraft, ships, and ...

    Oxford American Dictionary