A new method to determine silicon dioxide in powder coal ash has been stated. The method is feasible, fast and accurate.

提出了一种新的测定粉煤灰中二氧化硅的方法，该方法简单易行、快速、准确。

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The comparison between the dry powder coal gasification technology and coal water slurry gasification technology shows that the former is better than the latter.

对比了干粉煤气化和水煤浆气化两种流化床工艺，得出：前者优于后者。

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According to the realistic application of cement mixing pile in treating soft soil ground of powder coal ash, experiments constructions and testing have proved its practicability.

根据水泥搅拌桩在粉煤灰软基础中的实际应用，通过实验、施工和检测，证明水泥搅拌桩在软基中的实用性。

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With demand for Powder River coal growing fast, more tracks are needed.

FORBES: America has coal to last 250 years. Why is there a shortage?

Other coal companies have drifted out West to the Powder River Basin, where the coal lies right at your feet.

FORBES: Not King Coal

Union Pacific was no different but increased coal mining activity in Powder River Basin region situated in parts of Wyoming and Montana could reverse the slide in coal freight volumes for the company.

FORBES: Union Pacific's Coal Freight Business Chugs Ahead After Slowdown