1、

development and application of using medium and high volatile dead coal to make coke and gas in vertical retort

直立炉用中、高挥发分非炼焦煤炼焦制气的开发和应用

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2、

medium and high volatile long-flame coal, noncaking coal and slight caking coal in dead coal of china amount to some 27. 5 percent of the national storage.

我国非炼焦煤中的中、高挥发分长焰煤、不粘煤和弱粘煤等约占煤炭总储量的27.5%。

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3、

so far, few of means are available for efficient advance exploration in dead ends in coal mines.

迄今,用于煤矿井下独头巷道超前勘探的有效手段寥寥无几。

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4、

Twenty-six people were confirmed dead after a gas explosion at a coal mine of Juyuan Coal Industry Company in Mianchi County, Sanmenxia City, Henan Province, Xinhua reports.

据新华社报道,河南省三门峡市渑池县的巨源煤业公司一煤矿发生瓦斯爆炸,现已确定26人死亡。

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5、

Coal was formed out of dead forests by a long process of chemical change.

煤是由死去森林经过长期而缓慢的化学变化形成的。

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6、

In two years, the British coal industry will be dead and buried.

英国煤炭工业只消两年就将彻底瓦解。

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