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protactinium

/ˌprəʊ.tækˈtɪn.i.əm/

翻译: 一种银灰色、有放射性的金属化学元素,是锕系元素,由铀衰变生成,并进一步衰变成锕。

1 个条目

noun

/ˌprəʊ.tækˈtɪn.i.əm/C2formalscientific
  • zh一种银灰色、有放射性的金属化学元素,是锕系元素,由铀衰变生成,并进一步衰变成锕。

A short-lived, radioactive metallic chemical element that is formed from the decay of uranium and subsequently disintegrates into actinium and then into lead.

不可数

  1. Chemical elementC2formalscientific

    A short-lived, radioactive metallic element formed from uranium and disintegrating into actinium and then into lead.

    zh化学元素

    • Protactinium is a rare element found in uranium ores.
    • The decay chain of protactinium eventually leads to stable lead.
    • Scientists study protactinium to understand nuclear reactions.
词形
  • protactiniums plural form
  • protactiniums' possessive plural form
  • protactinium's possessive singular form