| 释义 |
锕系元素āxìyuánsùactinoids (rare earth series), namely: actinium Ac89 锕[ā], thorium Th90 钍[tǔ], protoactinium Pa91 镤[pú], uranium U92 铀[yóu], neptunium Ne93 镎[ná], plutonium Pu94 钚[bù], americium Am95 镅[méi], curium Cm96 锔[jú], berkelium Bk97 锫[péi], californ |