physical astronomy meaning in Chinese
天体力学，引力天文学。
Examples
- We assume that the physical laws we discovered on or near the earth can be applied to anywhere in the universe . would it be false , we can talk no more about physical astronomy
我们假设人类所知的物理定律，亦普遍适用于宇宙任何一个角落，没有了这个假设便万事皆休，甚么天文物理便会失去一切意义。