thorite

常见例句

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、銀白色、放射性四價金屬元素，同位素用作核反應能源，見於釷鑛和獨居石沙中。
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、銀白色、放射性四價金屬元素，同位素用作核反應能源，見於釷鑛和獨居石沙中