- 精細(xì)結(jié)構(gòu)常數(shù)
- 微細(xì)構(gòu)造常數(shù)
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fine-structure constant中文什么意思
例句與用法
- These energy levels are determined by how tightly the atomic nucleus holds the electrons , which depends on the strength of the electromagnetic force between them ? and therefore on the fine - structure constant
能階是由原子核拉住電子的松緊程度所決定，而這又取決于能階之間的電磁力強(qiáng)度，因此便和精細(xì)結(jié)構(gòu)常數(shù)關(guān)系密切。 - These findings complement recent contentious observations that the fine - structure constant , which describes the overall strength of the electromagnetic force , has increased slightly
這項(xiàng)發(fā)現(xiàn)為近來(lái)一項(xiàng)引人爭(zhēng)議的觀察做了補(bǔ)充：用來(lái)描述電磁力總體強(qiáng)度的精細(xì)結(jié)構(gòu)常數(shù)，已經(jīng)些微增加了。詳情請(qǐng)見(jiàn)4月21日的《物理評(píng)論通訊》 。 - The fine - structure constant is an important zero dimension constant in the atomic physics . this article introduces the origin of fine - structure constant , and discusses its physical significance , and theoretical calculation
摘要本文介紹原子物理學(xué)中重要的無(wú)量綱常數(shù)之一的精細(xì)結(jié)構(gòu)常數(shù)的由來(lái)，討論它的物理意義和理論計(jì)算。
百科釋義
In physics, the fine-structure constant (usually denoted α, the small Greek letter alpha) is a fundamental physical constant, namely the coupling constant characterizing the strength of the electromagnetic interaction. Being a dimensionless quantity, it has constant numerical value in all systems of units.
詳細(xì)百科解釋