celestial fix

基本解释

The opportunity of an observation must be first solved in day time celestial fixing.
在白昼测天定位中，首先需要解决的问题是观测时机的问题。
The accuracy of the position obtained by this method is higher than that of the traditional celestial fixing.
其船位精度较传统的一般天文定位的精度要高。
As satellite navigation aids became widely used on vessels in the past few decades, many officers have neglected the traditional practice of celestial fixing.
近十几年来，自卫星导航仪较为普遍地被各类船舶装备和使用后，不少船舶驾驶员已置天文定位于不顾之境地。