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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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Hull, Cordell
hulled
hullo
hum
human
human affairs
human anatomy
humanate
humanation
human beatbox
human being
human biology
human bomb
human BSE
human cannonball
human capital
human chain
human chorionic gonadotrophin
human condition
hum and ha
hum and haw (or hem and haw)
human document
humane
humane killer
humane letters
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更新时间:2025/2/24 2:34:38