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词汇
proto-actinium
释义
proto-actinium
英p'rəʊtəʊækt'ɪniəm美p'rəʊtəʊækt'ɪniəm
基本
英英
记法
医镤91号元素
名词 protoactinium:
a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead
proto-最初|第一-actinium⇒医镤91号元素
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更新时间：2025/6/3 9:39:07