Visual position measurements in astrometry are most affected .
天体测量学中视位置的测量受影响最大。
Most astrometry software packages use the guide star catalogue , so a cd-rom drive is also required .
很多天文软件包都使用引导星目录库，所以配置一个光驱也视必要的。
The work of this paper may offer some reference and gist for research on astrometry and geodesy .
本文的工作可为天文大地测量的研究提供一定的参考和依据。
Astrometry is the study of the precise measurements of the positions and movement of stars .
天体测量学研究的是恒星的精确位置和运动轨迹。
The conventional methods of geodesy and astrometry have an important meaning whether in basic science or in the construction of national economy and national defence .
