宇宙背景辐射 meaning in Chinese

cosmic background radiation
cosmic microwave background radiation

Cosmic background radiation
宇宙背景辐射
By carefully studying the polarity of the background radiation , scientists concluded that the first generation of stars in the universe first ignited to shine at only 200 million years after the big bang , much earlier than expected
经过细心研究宇宙背景辐射的偏振情况，天文学家得出一个惊人的结论，原来第一代的恒星早于大爆炸后2亿年已出现，远早于早前的估计。
According to big bang theory , the early universe is a hot , dense and opaque fluid of electrons and protons . this hot plasma constantly emits , scatters and reabsorbs photons and is the source of the cosmic background radiation
根据大爆炸理论，早期的宇宙主要由电子和质子组成，是一团高密度极端炽热不透光的等离子体，它不断放射散射和吸收光子，是宇宙背景辐射的源头。