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单词 palladium
释义 palladium1/pəˈleidiəm/n. Chem. a white ductile metallic element occurring naturally in various ores and used in chemistry as a catalyst and for making jewellery (symbol Pd) 【化】(化学元素) [modern Latin from Pallas, the name given to an asteroid discovered (1803) just before the element, + -IUM; cf. CERIUM]
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