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锕射气
ā shè qì
gen.
acton
(An)
chem.
actinium emanation
(An (射气同位素 Em²¹⁹))
met.
actinon
(An 射气同位素 Em
219
)
oil
actinon
tech.
actinium emanation actinon
;
acton
锕射气
射气同位素 An²¹⁹
ā shè qì
earth.sc.
actinon
锕射气
An
ā shè qì
gen.
actinon
(氡的同位素,Em²¹⁹)
锕射气
氯的同位素
ā shè qì
earth.sc.
actinium emanation
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