metrograph

汽车速度计

词形变化

metrographs 复数 metrographs

释义与例句

n.
  1. 1.

    An instrument attached to a locomotive for recording its speed and the number and duration of its stops.

  2. 2.

    A device used to measure the flow and velocity of liquids.

  3. 3.

    Any of various devices that continuously record several meteorological phenomena; a radiosonde or one of its precursors.

  4. 4.

    A device that uses reflection holograms to accurately measure three-dimensional objects, used primarily in orthodontics.

词源

From metro- + -graph.

来源：wiktionary