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technetium

/tekˈniː.ʃi.əm/

翻译: 一种人工合成的放射性金属元素,在自然界中几乎不存在,主要作为铀裂变产物生成。

1 个条目

noun

C2formalcommonscientific/tekˈniː.ʃi.əm/

不可数

A synthetic, crystalline metallic element that is not found naturally on Earth and occurs as a fission product of uranium.

  • 🇨🇳一种人工合成的放射性金属元素,在自然界中几乎不存在,主要作为铀裂变产物生成。
  1. Synthetic metallic element C2 formal scientific

    A silvery-gray, crystalline metallic element that is not found naturally on Earth and is produced artificially, often as a fission product of uranium.

    • Technetium is the lightest element that has no stable isotopes.
    • In nuclear medicine, technetium-99m is used as a radioactive tracer for diagnostic imaging.
    • The discovery of technetium filled a gap in the periodic table.

    🇨🇳合成金属元素

  • technetiums plural form
  • technetiums' possessive plural form
  • technetium's possessive singular form