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atomic number 59
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  • n. a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process

    同义词: praseodymium Pr

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    英英释义

    atomic number 59

    n.a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process

    同义词:praseodymiumPr




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