kuàng / shí / jīng / guò / shāi / xuǎn / hé / jiā / gōng / hòu / jīng / kuàng / bèi / sòng / wǎng / yě / liàn / chǎng

矿石经过筛选和加工后，精矿被送往冶炼厂。

After the ore is screened and processed, the concentrate is sent to the smelter.