In accordance with affect factor of big block coal and raise technical measures.

针对大块煤率的影响因素提出了技术措施。

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Taking block coal as experimental coal sample, gas emission characteristics of block coal was tested and studied.

以大块煤为实验煤样，实验研究了大块煤瓦斯放散特性。

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Accordingly, the distribution of abutment pressure on the block coal pillar is measured at working face with a steeply inclined seam of the12010 face, NO.

据此原理，实测得到了平煤集团十三矿12010大倾角综放开采工作面走向支承压力和区段煤柱侧向支承压力分布。

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The regulations also bar federal agencies from assessing emissions of the gases blamed for global warming on species and habitats, a tactic environmentalists have tried to use to block new coal-fired power plants.

CNN: Bush set to relax endangered species rules

But Republicans still have the power to block climate legislation in the Senate, especially with some Democrats from coal and industrial states also ambivalent about cap-and-trade.

WSJ: Coming Next: The Act II Blueprint

At their rates of economic growth, disruptions in coal or natural gas supply could prove to be a major stumbling block to their economy.

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