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File:Rareearthoxides.jpg
来自维基百科,自由的百科全书
Found in articles
File:Rareearthoxides.jpg
Description
Rareearthoxides
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English: These rare-earth oxides are used as tracers to determine which parts of a watershed are eroding. Clockwise from
File:ItWikiCon 2022 Ecco a lei un variegato di wiki e chimica.pdf
jpg (di Michel Chevreul; PD) Trenntrichter.
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(di Hannes Grobe; CC-BY-SA 4.0)
Rareearthoxides
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jpg
(di Peggy Greb; PD) Commons-logo.svg (di User:Pumbaa