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锕系 āxì
chem. actinoid; actinide; actinium series (指 5f 层已满的 89 ~ 103 号元素)
met. actinide series; actinium family; actinium series
tech. actinoid elements
锕系〔族〕 āxì
met. actinium family
锕系指 5f 层已满的元素 āxì
earth.sc. actinide
锕系
: 47 phrases in 7 subjects
Chemistry14
Earth sciences1
General8
Metallurgy10
Nuclear physics1
Oil / petroleum2
Technology11