dead coal

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。

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。

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%。

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。

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