镍

例句：

1. 1. Nickel is a valuable metal used in jewelry and other decorative items.
   镍是一种珍贵的金属，用于制作珠宝和其他装饰品。
2. 2.The nickel-iron alloy is commonly used in the production of tools and machinery.
   镍铁合金常用于生产工具和机械。
3. 3.Nickel is also important for its use in catalysts and in the production of electronic devices.
   镍还因其在催化剂和电子器件生产中的用途而重要。