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| 单词 | nickel |
| 释义 | nick·el (nĭkəl)n. 1. Symbol Ni A silvery, hard, ductile, ferromagnetic metallic element used in corrosion-resistant alloys, stainless steel, catalysts for hydrogenation, and batteries, and for electroplating. Atomic number 28; atomic weight 58.69; melting point 1,455°C; boiling point 2,913°C; specific gravity 8.902; valence 0, 1, 2, 3. See Periodic Table. 2. A coin of the United States or Canada worth five cents. tr.v. nick·eled, nick·el·ing, nick·els or nick·elled or nick·el·ling To coat with nickel. [Swedish, short for kopparnickel, niccolite, partial translation of German Kupfernickel : Kupfer, copper + Nickel, demon, rascal, from the deceptive copper color of the ore (from the name Nikolaus, Nicholas).] |
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