grunerite

例句：

1. 1. The chrome plating on the watch is exceptionally smooth.
   手表上的镀铬非常光滑。
2. 2. Nickel-iron ore is a valuable resource for metallurgy.
   镍铁矿石是冶金业的重要资源。
3. 3. The chrome plating on the car's body is durable and resistant to corrosion.
   汽车车身的镀铬层耐用且抗腐蚀。