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yóu yuán sù de fàng shè xìng
铀元素的放射性
radioactivity of uranium
yóu yuán sù zhèng shì cóng zhè zhǒng kuàng shí zhōng tí qǔ chū lai de
铀元素正是从这种矿石中提取出来的。
Uranium element is extracted from this ore.
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