sextant

noun

1. 六分仪（用以计算船舶或飞机的准确位置）
   an instrument for measuring angles and distances, used to calculate the exact position of a ship or an aircraft

1. 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.

1. To define latitude and longitude coordinates for a location on the Earth, at minimum, you must be able to see the stars or the Sun and have a sextant and clock that displays time in GMT.
   确定地球上某个位置的经度和纬度坐标的最低需求是，你至少能够看到星星和太阳，并具备一个六分仪和能够显示GMT时间的时钟T。
2. Unlike decimal coordinates, which you can determine using a sextant and a chronometer, you cannot determine UTM coordinates without calculations.
   十进制坐标可通过一个六分仪和一个记时计确定，与此不同的是，必须通过计算才能确定UTM坐标。
3. The sextant is hard to use.
   这个六分仪很难用。
4. Application of mini-invasive percutaneous pedicle screw fixation in thoracolumbar fracture using multi-level Sextant system
   微创三节段经皮椎弓根螺钉内固定选择性治疗胸腰椎骨折
5. Objective To assess the therapeutic effect of mini-invasive percutaneous pedicle screw fixation in thoracolumbar fracture using multi-level Sextant system.
   目的评价微创三节段经皮椎弓根螺钉内固定术治疗胸腰椎骨折的效果。
6. Study on Angle Measuring Sensing System of Nautical Electronic Sextant
   航海电子六分仪测角传感系统研究
7. The Analysis of Conditions about Eliminating The Principle Error in Measuring of Bubble Sextant
   消除气泡六分仪测量原理误差的条件分析
8. This paper describes angle measuring principle and signal's digital processing method of Nautical Electronic Sextant, based on single chip microcomputer and rotary encoder. And it gives the related software design method.
   介绍了基于单片机和旋转编码器的航海电子六分仪的角度测量原理及信号的数字化处理方法，并给出了相关的软件设计方法。
9. This paper is a relatively new research direction formed the astronomical positioning algorithm with computer technology, sensor technology with the improvement of sextant.
   本文是将天文定位算法与计算机技术，传感器技术与六分仪改进相融合所形成的一个较新的研究方向。

noun

1. a measuring instrument for measuring the angular distance between celestial objects

2. a unit of angular distance equal to 60 degrees