输出以沥青、铬矿石、镍铁矿石、铜精矿、烟草、水果为主；
Output to bitumen, chrome ore, nickel, iron ore, copper concentrate, tobacco, fruit-based;
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。
Other important African export commodities are iron ore and timber, followed by manganese, cobalt, copper and chromium.
硅锰铬合金、炉料矿石、富锰渣的生产销售。
Guimeng chromium alloy, furnace charge ores, manganese residue rich production sales.
赤铅矿是一种由铬酸铅组成的矿石，以单斜晶体形式存在的结晶体。并且是自然界中发现的唯一一种重要铬酸盐。
Crocoite is a mineral consisting of lead chromate and crystallizing in a monoclinic crystal system, and it is the only chromate of any importance found in nature.
跳汰法在处理含金，钽铌、钛、锆、铬的原生矿石和砂石的选别亦能获得良好效果。
Moreover, Jigging Method also can achieve a good result in processing primary ores bearing gold, tantalum niobium, titanium, zirconium and chrome and sand stones.
结果表明：采用异形研磨体——含少量耐磨耐腐蚀的微量元素超高铬柱（棒或段）球，对于粉磨坚固矿石具有显著的增产、节能、降耗的效果。
The results show that it will have obvious effect of increasing output , saving energy and reducing power consumption if superhigh chromium cylinder-ball mixing a small quantity of wearable-c.
这个国家拥有丰富的矿产，如铝土矿、铁矿石、铅、黄金、宝石、锡、铬酸盐、无烟煤、花岗岩、大理石、粘土、白砂和石墨。
The country is rich in minerals such as bauxite, iron ore, lead, gold, precious stones, tin, chromate, anthracite, granite, marble, clay, white sand and graphite.
这个国家拥有丰富的矿产，如铝土矿、铁矿石、铅、黄金、宝石、锡、铬酸盐、无烟煤、花岗岩、大理石、粘土、白砂和石墨。
The country is rich in minerals such as bauxite, iron ore, lead, gold, precious stones, tin, chromate, anthracite, granite, marble, clay, white sand and graphite.
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