thorite

常見例句

• a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands.
  一種軟質(zhì)、銀白色、放射性四價金屬元素，同位素用作核反應(yīng)能源，見于釷礦和獨居石沙中。
• a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands
  一種軟質(zhì)、銀白色、放射性四價金屬元素，同位素用作核反應(yīng)能源，見于釷礦和獨居石沙中
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