英 [ˈsekstənt] 美 [ˈsekstənt]
n. 六分仪(航海定向仪器);圆的六分之一
复数sextants
sextant /ˈsɛkstənt/
可数名词 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. 六分仪; 用于测算船只或飞机位置的仪器
a unit of angular distance equal to 60 degrees
a measuring instrument for measuring the angular distance between celestial objects; resembles an octant
六分仪-引用次数:1
六分仪
纪限仪
六分仪
六分仪
sexagesimal 六十的;六十进位的
sexagesimal 六十分之一
sextuplet 六个一组;六胞胎之一
A navigator also had to know how to use a complex instrument called a sextant.
VOA : special.2009.12.23
This milestone in aeronautical history marks the first use of the sextant in air navigation.
Other important navigation tools include: the sextant, the astrolabe, the diptych, GPS devices.
For measurement purposes, the transit of Venus is as obsolete as a sextant.