The small-oil-gun less oil ignition technology for igniting low-volatile poor coal is a patented technology developed in recent years.

应用小油枪微油点火技术点燃低挥发份贫煤技术为近年开发的专利技术。

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Test results show that the reconstruction counteracts the impact of poor coal quality to some extent and is conducive to the economic operation of the boiler.

试验表明，上述改造措施能在一定程度上降低煤质差带来的负面影响，有利于锅炉的经济运行。

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The coal it produces is mostly poor in quality and rich in ash; it should be washed before shipping to make it more efficient, but is not.

它所产的煤炭大部分质量差而灰尘多；要想提高这些煤炭的效率，在装运之前应该要清洗但它们并没有被清洗过。

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In the report, Facebook earned poor marks for coal intensity (53.2 percent, the second highest of the 10 companies rated), a D for transparency, an F for infrastructure siting, and a D for mitigation strategy.

FORBES: Facebook Commits to Green Energy -- But Can It Deliver?

The World Bank should support poor countries that need coal-powered energy in spite of its contribution to climate change, its president has said.

BBC: Jim Yong Kim

For a start, there is so much cheap coal, distributed all over the world, that poor countries are bound to burn it.

ECONOMIST: The environment