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单词	zirconium
释义	zirconium /zəːˈkəʊnɪəm / noun [mass noun] The chemical element of atomic number 40, a hard silver-grey metal of the transition series. (Symbol: Zr) Sodium is also used as a chemical reducing agent in producing titanium, zirconium, niobium, and tantalum from their fused salts.... The process is not recommended for weld preparation for stainless steel, titanium, zirconium, and other similar metals without subsequent cleaning. For deoxidation of carbon and low-alloy steels, aluminum, titanium, and zirconium are used. Origin Early 19th century: modern Latin, from zircon. Rhymes ammonium, euphonium, harmonium, pandemonium, pelargonium, plutonium, polonium
随便看	rhinobatid rhino beetle rhino bird rhinocerine rhinoceroid rhinoceros rhinoceros auklet rhinoceros beetle rhinoceros bird rhinoceros bush rhinoceros chameleon rhinoceros cup rhinoceros hide rhinoceros horn rhinoceros hornbill rhinoceros-like Rhinoceros Party rhinoceros skin rhinoceros viper rhinocerot rhinocerote rhinocerotic rhinocerotid rhinocerotine rhinocerotoid

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