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单词 hafnium
释义

hafnium/ʹhafni·əm/ noun

a silvery metallic transition chemical element that occurs naturally in zirconium ores, and is used in tungsten alloys for filaments: symbol Hf, atomic number 72

[Latin hafnium from Hafnia, Latinized form of Danish Havn, former name of Copenhagen, city in Denmark]
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更新时间:2025/1/6 0:57:21