选矿机

例句：

1. 1. The mining company uses this type of machine to process the ore.
   这家矿业公司使用这种机器来处理矿石。
2. 2. The ore sorter is essential for separating valuable minerals from the rock.
   矿石分离器对于从岩石中分离出有价值的矿物至关重要。
3. 3. The operator controls the machine with a joystick, adjusting the settings as needed.
   操作员通过操纵杆控制机器，根据需要调整设置。