n.天体测定...

astrometry的音标：astrometry的英式发音音标为：[ə'strɒmətri]astrometry的美式发音音标为：[ə'strɑmətri]...

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.A new theoretical system of astrometry in the frame of relativity ought to be finished.天体测量学需要在相对论框架下重新建立自己的理论体系.In this paper, the present s...