powdered ore

例句：

1. 1.The mine produces a variety of minerals, including powdered ore.
   该矿生产多种矿物，包括粉末状矿石。
2. 2.The engineer used a special machine to grind the powdered ore into a fine powder.
   工程师使用一台特殊的机器将粉末状矿石磨成细粉。
3. 3. Powdered ore is often used as a fuel in power plants.
   粉末状矿石常被用作发电厂的燃料。