sextants是什么意思？

sextants

• n. （航海用的）六分仪( sextant的名词复数 )；

柯林斯高阶英汉双解学习词典释义

• N-COUNT
  六分仪(用于测算船只或飞机的位置)
  A sextant is an instrument used for measuring angles, for example between the sun and the horizon, so that the position of a ship or aeroplane can be calculated.