The machine is widely used in classification Tungsten, Tin, Tantalum, Niobium, Rare Metals, Noble Metals, Iron, Manganese Ore and Coal ore, it is the main equipment of gravity concentration.

广泛应用于钨、锡、钽铌、稀有金属、贵重金属、铁、锰矿石和煤矿石的选别，是重力选矿的主要设备。

youdao

youdao

Steam became the motive force of the Industrial Revolution as coal and iron ore were the raw materials.

因为煤和铁矿石是原材料，蒸汽成为了工业革命的动力。

youdao

"We've seen good levels of output, and given that, for the bulk commodities in particular that's the iron ore and coal both steaming and coking those prices are looking strong.

VOA: standard.2010.01.21

The value was unchanged because prices for coffee, cotton, coal and iron ore fell.

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It buys enormous amounts of Australian coal and iron ore, which has fueled a natural-resources boom.

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The desperate search for upside earnings surprises even embraces mining properties covering coal, iron ore and copper.

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