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恒星(如太阳)的内部结构及其物理属性、银河系中众多恒星周围气体的物理状态,以及所谓的活动星系核的运行等领域都属于现代天体物理学的范畴;而唐
The internal structures and physical properties of stars (such as the Sun), the physical states of gas surrounding many stars in the Milky Way, and the operation of so-called active galactic nuclei all belong to the category of modern astrophysics; whereas Don