nickel coat

例句：

1. 1.The new car has a shiny nickel coat that catches the light.
   这辆新车有一个闪亮的镍涂层，能反射光线。
2. 2.The old suitcase had a nickel coat that was peeling off.
   那把旧手提箱有一个剥落的镍涂层。
3. 3. The engineer applied a nickel coat to protect the metal from corrosion.
   工程师给金属涂上一层镍涂层以保护它免受腐蚀。