protoactinium 详细解释
protoactinium
[.prəutəu'æktiniəm]
n. 镤
英英释义
名词 protoactinium:
a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead
同义词：protactinium, Pa, atomic number 91
补充
protoactiniumprotoactinium[ˌprəutəuækˈtiniəm]n.1.镤热门单词推荐
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