astro geodetic net adjustment

Astronomy and Humanities——Si Xiang——dragon,tiger,phoenix and tortoise;

天文与人文—四象——龙、虎、凤、龟

Shuo Wen Jie Zi and Ancient Astronomy;

《说文解字》与古代天文学

Telescopes and astronomy:A 400-year retrospect and future prospects;

望远镜和天文学:400年的回顾与展望

The authors consider this is a new branch of learning in the interdisciplinary between astronomy and disasters.

提出了天文灾害的概念，认为它是天文学与灾害科学交叉研究的一个新的分支学科。

At first,the various fractals of different levels in astronomy and cosmology are introduced.

在引入天文学和宇宙论中不同层次的分形后,把它推广到任意直线型的泛分形理论和一般化的分形天文学。