['sekstənt]
sextant
n. 六分仪(航海定向仪器)

例句与用法:

  1. A medieval instrument, now replaced by the sextant, that was once used to determine the altitude of the sun or other celestial bodies.
    星盘一种中世纪的仪器,曾用来测量太阳或其它天体的高度,现在已被六分仪取代

英英解释:

名词 sextant:

  1. a unit of angular distance equal to 60 degrees
  2. a measuring instrument for measuring the angular distance between celestial objects; resembles an octant