parahelium
名词 n.
英文释义
名词 n.
- The form of the helium atom in which the spins of the two electrons form a singlet state (a state with zero total spin)
词源
Etymology tree
Proto-Indo-European *per-
Proto-Indo-European *preh₂-
Proto-Hellenic *pərai
Ancient Greek πᾰρᾰ́ (părắ)
Ancient Greek πᾰρᾰ- (pără-)der.
English para-
English helium
English parahelium
From para- + helium.
Proto-Indo-European *per-
Proto-Indo-European *preh₂-
Proto-Hellenic *pərai
Ancient Greek πᾰρᾰ́ (părắ)
Ancient Greek πᾰρᾰ- (pără-)der.
English para-
English helium
English parahelium
From para- + helium.
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数据来源: Wiktionary