Suitable for the coal mining blasting work of mines with little gas inside and the blasting work of half coal rock mining.

适用于有低瓦斯矿井煤层采掘工作面、半煤岩掘进工作面的爆破作业。

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Mountaintop mining involves a highly destructive practice of blasting through hundreds of feet of mountaintop to get at thin but valuable seams of coal

山顶采矿包括炸毁数十米山顶，获取稀薄而珍贵煤层的行动，具有极高的破坏性。

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Abstract: with the mine production mechanization degree unceasing enhancement, as a traditional method of coal blasting fall coal mining machinery has gradually be replaced.

摘要：随着煤矿生产机械化程度的不断提高，作为传统采煤方法的爆破落煤已逐渐被机械采煤所代替。

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Since coal companies decided that blasting was better than mining, over 500 Appalachian mountains have been destroyed, decimating 1 million acres of forest, and burying some 2000 miles of streams.

FORBES: Written by Michael d��Estries