出现了一门新兴学科——无线电天文学，它与天文学、天文物理学和物理学关系密切。
A new science, Radio astronomy, has emerged, and it is very closely allied to astronomy, astro - physics and physics.
出现了一门新兴学科——无线电天文学，它与天文学、天文物理学和物理学关系密切。
A new science, Radio ASTROnomy, has emerged, and it is very closely allied to ASTROnomy, ASTRO-physics and physics.
出现了一门新兴学科——无线电天文学，它与天文学、天文物理学和物理学关系密切。
A new science, Radio ASTROnomy, has emerged, and it is very closely allied to ASTROnomy, ASTRO-physics and physics.
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