【big_bang_nucleosynthesis】什么意思_英语big_bang_nucleosynthesis的翻译_音标_读音_用法_例句_在线翻译

big bang nucleosynthesis

大爆炸核合成

当宇宙温度高达10亿到100亿K时，较轻的原子核能够聚变为较重的原子核，这个过程被称为大爆炸核合成(big bang nucleosynthesis)。随着宇宙的膨胀，温度会迅速下降，因此核合成只能持续短短几分钟，聚变也只能发生在最轻的几种元素之间。

基于132个网页-相关网页

核合成

...的原子核，这过程称为「大爆炸开始结合成氘、氦等轻元素的原子核，这过程称为「 核合成 核合成(Big Bang Nucleosynthesis)。不过，原始火球冷却得很快，在短。

基于36个网页-相关网页

参见大爆炸核合成

... 轻物质丰度（参见大爆炸核合成（Big Bang nucleosynthesis））。 参见大爆炸核合成（Big Bang nucleosynthesis ）。视野问题（horizon problem）； ...

基于24个网页-相关网页

理论

前言 BBN 系宇宙大制核理论 (Big Bang Nucleosynthesis)之简称.BBN,哈伯定律,..

基于1个网页-相关网页

短语

abstract: In physical cosmology, Big Bang nucleosynthesis (abbreviated BBN, also known as primordial nucleosynthesis) refers to the production of nuclei other than those of the lightest isotope of hydrogen during the early phases of the universe. Primordial nucleosynthesis is believed by most cosmologists to have taken place between approximately 10 seconds until 20 minutes after the Big Bang, and is calculated to be responsible for the formation of most of the universe's helium as isotope He-4, along with small amounts of deuterium (H-2 or D), the helium isotope He-3, and a very small amount of the lithium isotope Li-7.

以上来源于: WordNet

应用推荐

$firstVoiceSent

- 来自原声例句