photochronograph

n. 动态定时照相机, 照相计时仪

词形变化

photochronographs 复数 photochronographs

释义与例句

n.
  1. 1.

    An instrument for recording very short intervals of time. The record is made by the power of a magnetic field, due to an electric signaling current, to turn the plane of polarization of light. A flash, coinciding in time and duration with the signal, is thus produced and is photographed on a moving plate.

    物理
  2. 2.

    An instrument for the photographic recording of star transits.

    天文

词源

From photo- + chronograph.

来源：wiktionary