Any of a series of chemically similar, radioactive elements with atomic numbers ranging from 89 ( actinium ) through 103 ( lawrencium ).锕类任何化学性质相似, 原子序数在89 ( 锕 ) 与103 ( 铹 ) 之间变化的放射性元素....

lawrencium的音标：lawrencium的英式发音音标为：[lɒ'rensiəm]lawrencium的美式发音音标为：[lɔ'rensiəm]...

n.铹...