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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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radius rod
radius saw
radius vector
radix
radix sort
radix sorting
radknight
RADM
radman
Radner, Gilda
radness
Radnor
Radnorshire
Radom
radome
radon
radon seed
radula
radular
radulate
emerse
emersed
emersion
Emerson, Ralph Waldo
emery
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更新时间:2025/9/20 13:16:31