Analyses the existing problems that production scale is smaller, market is dispersal in China coal enterprise industry, points out that building large coal enterprise group is trend of times.
分析了我国煤炭企业生产规模中，煤炭企业市场分散等存在的问题，提出组建煤炭大企业集团已势在必行。
The coal bed gas reservoirs in China are characterized by low permeability, low desorption speed, low production, rapid production decline and difficult to realize industrial scale production.
中国煤层气藏的特点是渗透率低，解吸速度低，产量低，产量递减快，工业化生产难。
In Production process of large scale power plant, coal fly ash is produced in large amounts. These coal fly ash is piled up. It pollute the environment, wasting the cultivated land.
大型火力发电厂在生产运行过程中产生大量的粉煤灰，长期积存堆放，污染环境、占用土地。
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