tonne

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As for Rio, it is still digging it up in the Pilbara at a cost of about $42 per tonne, and selling at $62 – a respectable operating profit margin.
至于力拓，目前它仍以大约每吨42美元的成本在皮尔巴拉矿区挖矿，以62美元的价格销售——其运营利润率非常可观。
It does not cost much to scrape it up; the expense comes in moving it from mine to market. Even so, Australia can produce iron ore for $25 a tonne and sell it for $150.
开采成本本身不高，而且外部投资正在将成本从矿山转移到市场，这些使得澳大利亚可以以每吨25澳元的价格成本开采而以150澳元的价格将它卖出。
By improving their hunting techniques, early humans seem to have played a major role in finishing off the woolly mammoths and nine other mammal species that weighed over a tonne.
利用改进了的狩猎技术，早期人类似乎扮演了终结者的角色，使长毛猛犸和其他九种超过一吨的哺乳动物彻底从地球上消失。

Engineers tweaked the machinery to add another 220, 000 tonnes to the mill's 740, 000-tonne annual output.
FORBES: Paper & forest products