The results show that smelting reduction and direct alloying by chromium ore in the converter are feasible, and externally applied reducing agent is indispensable;
结果表明：转炉内用铬矿熔融还原直接合金化是可行的，且必须外加还原剂；
Other important African export commodities are iron ore and timber, followed by manganese, cobalt, copper and chromium.
其他重要的非洲出口商品是铁矿石和木材，其次还有锰、钴、铜和铬。
It has oil, gold, chromium, iron ore and a host of other minerals.
拥有石油、黄金、铬、铁矿石和大量的其他矿产。
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