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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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Juilliard, Augustus D.
ju-jitsu
juju
jujube
jujube bush
ju-jutsu
juke
jukebox
juke joint
jukskei
juku
Jul.
julep
julia
Julian
Juliana
Julian Alps
Julian calendar
Julian of Norwich
Julia set
julienne
Juliet
Juliet balcony
Juliet cap
Julius Caesar, Gaius
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更新时间:2026/10/8 14:19:15