方位天文学

The main branches of a spherical astronomy, practical astronomy, astronomy and astronomical azimuth geodynamics.

主要的分支学科有球面天文学、实用天文学、方位天文学和天文地球动力学。

Its theory is based on spherical astronomy and error theory, the main research on the ground coordinates of the points and ground connections between two points, the determination of the azimuth principle, measurement method, calculation method of operating procedures and go.

它的理论基础是球面天文学和误差理论，主要研究地面坐标点和地面两点之间连线的方位角的测定原理、测定方法、操作程序和归算方法。

These orientations were obtained by astronomy, not by magnetic compass.

这些方位是通过天文学，而不是指南针而获取。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。