True cost of Rwanda's coltan, higher than expected.

卢旺达钶钽铁矿石真实成本。

Columbite-tantalite ore, better known as coltan, is found mainly in the rainforests of Africa and is used in the production of modern electronic devices.

用于制造现代电子产品的钶钽铁矿大多都蕴藏在非洲的热带雨林。

In eastern Congo the vacuum created by Mobutu's exit led to fierce competition among proxy armies and various militias for its gold, charcoal, tin, and coltan.

在刚果东部地区，由蒙博托撤退留下的真空导致了代理人军队之间和各种武装派别之间对金矿、木炭、锡矿和钶钽铁矿的激烈争夺。