cupro nickel 中文意思是什麼

cupro nickel 解釋
銅鎳合金
  • nickel : n 【化學】鎳；〈美、加〉五分鎳幣；（一般）鎳幣。 a nickel note 〈美國〉五元鈔票。 a nickel nurser...
  1. This is because an attempt was made in that year to use a more economical, steel plated coin for the one dollar denomination, as against the more expensive cupro - nickel coin that has been in circulation since 1960

    事緣在1993年我們嘗試用成本較低的鍍鋼來鑄造1元硬幣，以代替1960年開始使用的比較昂貴的紅銅鎳合金。
  2. Contamination of hands with nickel was shown to occur by handling cupro - nickel coins for five minutes, the study said

    人們的手和這種鎳銅合金硬幣保持5分鐘接觸就會引起鎳污染。
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