The steel used in the pipes, however, is usually alloyed with cobalt to make it stronger.
但用来制造管道的钢中通常掺入了合金成分钴来增强材料的强度。
The invention relates to a process for utilizing catalyst such as diphosphonic dihalide cobalt to prepare vinyl monomer polymer.
本发明涉及使用二膦二卤化钴类催化剂及制备乙烯基单体聚合物的方法。
Companies with new deals to exploit copper and cobalt in the mineral-rich Katanga province were making hundreds of millions of dollars on stock exchanges across the world.
那些公司在矿产丰富的加丹加省有新合同来开采铜和钴的，正在全球股票交易所获得数亿美元的收益。
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