German reunification in 1990 saddled the country with East Germany's low-grade brown coal plants, the dirtiest in Europe.

1990年德国统一，东德很多使用粗煤的低级工厂并入了西德，这是全欧洲最脏的工厂。

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The Ohio river has been called the American Ruhr, As in Germany, the area along the river is rich in valuable deposits of high-grade coking coal and is well known for its steel industry.

俄亥俄河被称作美国的鲁尔河，就像德国一样，沿河有丰富的高品质的炼焦煤，并且因其钢铁而著名。

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Generally speaking, the coal of power plant is low-grade, high-ash (the low content of fixed carbon) and the effect of direct gasification is bad.

一般说来，电站煤质的品位低、灰含量高(低的固定碳含量)，直接气化效果很差。

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Coking coal is high grade coal used in the production of steel.

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Coal stocks fall into the energy sector even through the pivotal variable for earnings is demand for metallurgical grade coal which is tied to world steel production.

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High grade coal that is used to make steel is in particular demand in developing countries such as China, India and Brazil.

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