"euxenite:a lustrous, blackish-brown rare-earth mineral consisting primarily of cerium , erbium, titanium, uranium, and yttrium."
"黑稀:一种光亮的棕黑色稀土石,主要由铈、铒、钛、铀和钇构成."
"euxenite:a lustrous, blackish-brown rare-earth mineral consisting primarily of cerium , erbium, titanium, uranium, and yttrium."
"黑稀:一种光亮的棕黑色稀土石,主要由铈、铒、钛、铀和钇构成."
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