每吨15欧元（22美元）的价格足够让电力公司从煤发电转向用气发电。

At 15 euro ($22) a tonne the price is high enough to induce power companies to switch some generation from coal to ga.

youdao

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。即便如此，澳大利亚可以以每吨25澳元的价格成本生产铁矿石。

It does not cost much to scrape it up, and the expense comes in moving costs from mine to market. Even so, Australia can produce iron ore for $25 a tonne.

youdao

每吨矿砂的净利达20美元。

The net profit amounts to 20 dollars per ton of ore.

《新英汉大辞典》