cosmic microwave background radiation

• 第二讲 宇宙微波背景辐射

cosmic microwave background radiation的英文翻译是什么意思，词典释义与在线翻译：

英英释义

Noun:

1. (cosmology) the cooled remnant of the hot big bang that fills the entire universe and can be observed today with an average temperature of about 2.725 kelvin