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单词
radium emanation
释义
ra
dium em
an
ation
noun
Archaic term for radon.
By 1900, Friedrich Dorn discovered the isotope radon - 222 and called it radium emanation (Em).
...
In 1921 Margaret Uhlig suggested that radium emanation, later known as Rn, may be the cause of the lung cancers.
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rejuvenescent
rejuvenise
rejuvenize
rejón
rekey
rekill
rekindle
rekindlement
rekindler
rekiss
reknit
reknow
-rel
relabel
relache
relade
relading
relais
relais routier
relais routiers
relamp
relance
reland
relapsable
relapsation
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更新时间:2025/6/23 8:25:57