concentrate

/ˈkɑnsənˌtreɪt/

the desired mineral that is left after impurities have been removed from mined ore

中文释义：精矿；浓缩物

The mining company processes the ore to produce copper concentrate.

矿业公司加工矿石以生产铜精矿。

The concentrate is then shipped to smelters for further refinement.

精矿随后被运往冶炼厂进行进一步提炼。