单词	europium
释义	europium /jʊ(ə)rˈəʊpɪəm / noun [mass noun] The chemical element of atomic number 63, a soft silvery-white metal of the lanthanide series. Europium oxide is used with yttrium oxide as a red phosphor in colour television screens. (Symbol: Eu) Typical materials used for the former are europium yttrium vanadate and yttrium oxysulphide doped with europium.... Is there enough chromium, cobalt, helium, and manganese - not to mention erbium, europium, and gadolinium - on the planet to last indefinitely? By replacing yttrium ions with europium, the researchers could make garnets with a violet hue, while ytterbium, zirconium, and cerium produced green garnets. Origin Early 20th century: modern Latin, based on Europe. Rhymes opium
随便看	climatize climatized climatographic climatographical climatography climatologic climatological climatologically climatologist climatology climatorial climatotherapeutic climatotherapy climature climax climb climbable climb down climbdown climber climbing climbing euonymus climbing frame climbing irons climbing perch

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