天体物理 tiāntǐwùlǐ astrophysics Definitions Defs Origin Strokes Stroke Words Sentences Sents 天体物理学 tiāntǐwùlǐxué astrophysics The science that applies the methods and theories of physics to study the structure, chemical composition, and evolution of celestial bodies.天体物理学家 tiāntǐwùlǐxuéjiā astrophysicist
