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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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Rosicrucian
Rosicrucianism
rosied
Rosie Lee
Rosie the Riveter
rosily
rosin
Rosinante
rosinback
rosin-end
rosiner
rosiness
rosin flux
rosin gas
rosin oil
rosinous
rosin plant
rosin rose
rosinweed
rosiny
rosist
rosit
Roskilde
ROSLA
rosmarine
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更新时间:2025/8/6 7:58:06