smelting unit

例句：

1. 1.The company's new smelting unit is expected to significantly reduce emissions.
   该公司的新熔炼单元预计将显著减少排放。
2. 2.The engineer designed a smelting unit that could process large amounts of ore.
   工程师设计了一个可以处理大量矿石的熔炼单元。
3. 3. The smelting unit was used to extract valuable metals from the ore.
   这个熔炼单元被用来从矿石中提取有价值的金属。