这些矿石主要来自力拓以及另一矿业巨头必和必拓，虽然澳大利亚的其他公司也出口矿石。

The ore came mainly from Rio and another mining giant, BHP Billiton, although other Australian companies shipped the mineral as well.

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在税收方面，她与澳大利亚三大矿产公司必和必拓、力拓和斯特拉塔公司敲定的协议也有这样的作用。

So, too, will the deal on tax that she struck with BHP Billiton, Rio Tinto and Xstrata, Australia's three biggest mining companies.

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根据这个星期签署的一项协议，澳大利亚采矿业巨人力拓公司为一些矿石争取到高于过去几乎一倍的价格。

In a deal signed this week, Australian mining giant Rio Tinto has secured increases that almost double the price of some grades of the mineral.

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