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单词 thulium
释义 thulium
 /thooh"lee euhm/, n. Chem.
 a rare-earth metallic element found in the minerals euxenite, gadolinite, etc. Symbol: Tm; at. wt.: 168.934; at. no.: 69; sp. gr.: 9.32.
 [1875-80; < NL; see THULE, -IUM]
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