lean coal [矿物] 贫煤 ; 瘦煤
Meager-lean coal 贫瘦煤
Lean Coal To Bituminous 贫煤到烟煤
poor lean coal 贫瘦煤
lean coal char 贫煤焦
Hejin lean coal 河津贫煤
The gasification face development rate of the test coal changes gently in underground gasification process, which indicates that the underground gasification of lean coal has high stability.
气化工作面扩展速率在供风点附近出现最大值，变化平稳，瘦煤地下气化具有较高的稳定性。
In fact, it has been proved that relying on the improvement of technology and management Lurgi pressure gasification process for meagre coal and lean coal is feasible and reasonable.
事实表明，随着工艺的不断改进和生产管理水平的提高，鲁奇加压气化工艺用于贫瘦煤的气化是可行的。
Considering its rich resources and utilization range, people find lean coal has excellent economic benefit.
同时根据贫煤的资源量和使用范围，使用贫煤具有良好的经济效益。
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