ore concentrate

例句：

1. 1. The ore concentrate is extracted from the mine and then processed for sale.
   矿石浓缩物从矿中提取出来，然后加工出售。
2. 2. The process of ore concentration involves separating impurities from the ore.
   矿石浓缩过程涉及从矿石中分离杂质。
3. 3.The ore concentrate is a valuable resource that can be used to produce metals such as gold and silver.
   矿石浓缩物是一种宝贵的资源，可以用来生产如金和银等金属。