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单词 cadmium
释义 cadmium['kædmiəm]n. 镉【化】 镉Cd【医】 镉(48号元素) cadmium  cad.mi.um  AHD:  [k²d“m¶-…m] D.J.  [6k#dmi8*m]K.K.  [6k#dmi*m]n.Symbol Cd (名词)符号 Cd A soft, bluish-white metallic element occurring primarily in zinc, copper, and lead ores, that is easily cut with a knife and is used in low-friction, fatigue-resistant alloys, solders, dental amalgams, nickel-cadmium storage batteries, nuclear reactor shields, and in rustproof electroplating. Atomic number 48; atomic weight 112.40; melting point 320.9&9{=}C; boiling point 765&9{=}C; specific gravity 8.65; valence 2.See table at element 镉:一种质软的,蓝白色的金属元素,最初存在于锌矿、铜矿和铅矿之中,这种金属易于用刀切割,用于制造低摩擦阻力和耐疲劳的合金、焊料、牙科用的混合填料、镍镉蓄电池、核反应堆防护层和防锈电镀之中。原子序数48;原子量112.40;熔点320.9&9{=}C;沸点765&9{=}C;比重8.65;原子价2参见 element语源:1. Latin cadm&9{ºa} [calamine (from its being found with calamine in zinc ore)]  from Greek kadmeia (ge) [Theban (earth)]  from Kadmos [Cadmus] 拉丁语 cadm&9{ºa} [菱锌矿(因与菱锌矿一同在锌矿中发现而得名)]  源自 希腊语 kadmeia (ge) [底比斯的(泥土)]  源自 Kadmos [卡德摩斯] 2. -ium -ium继承用法:cad“mic  AHD:  [-m¹k] (形容词)
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