1.
Determination of transmittance for low rank coal
GB/T2566-1995低煤阶煤的透光率测定方法
2.
Key Controlling Factors Comparison between High and Low Rank CBM Reservoir Formation;
高、低煤阶煤层气藏主控因素差异性对比研究
3.
The Research of Accumulation of Low Rand Coldbed Methane in the North-West of China;
中国西北低煤阶煤层气成藏地质特征研究
4.
Discussion on Criteria for Evaluation of Selected Target Areas in Prospecting CBM in Low Rank Coal in Xingjiang
新疆低煤阶煤层气勘探选区评价标准的探讨
5.
Analysis of typical production mechanism and characteristics of coalbed methane wells for high rank coal in south Qinshui basin
沁南高煤阶煤层气井排采机理与生产特征
6.
Geological Characteristics and New Development Progress of Low Rank Seam Coal Bed Methane in China
我国低煤阶煤层气地质特征及最新进展
7.
Microscopic Mechanism Study on the Influence of Coal Rank on Adsorption Capacity
煤阶对煤吸附能力影响的微观机理研究
8.
Destructive influences and effectively treatments of coal powder to high rank coalbed methane production
煤粉产出对高煤阶煤层气井产能的影响及其控制
9.
The Reservoir Characteristics and Tectonic Influence of High Rank Coalbed Methane in Qinshui Basin, Shanxi Province;
山西沁水盆地高煤阶煤层气成藏特征及构造控制作用
10.
The new technology of high-concentration gasifying CWM from low rank coal
低阶煤制备高浓度气化水煤浆新技术
11.
Peat, the first stage in the formation of coal, is a low-rank material.
泥炭是煤形成的第一阶段，是一种低质煤。
12.
An Experimental Study on the Mechanism of Adsorption and Desorption of CBM on Low-rank Coal
低阶煤煤层气吸附与解吸机理实验研究
13.
～(13)C-NMR Research of Coalification Mechanism for Low-medium Rank Coal;
中低煤化作用阶级煤化作用机理的～（13）C-NMR研究
14.
THERMAL EXTRACTION BEHAVIOR OF LOW RANK COAL IN THE COAL DERIVED LIQUIDS
低阶煤在煤液化衍生油中的热萃取性能
15.
Comprehensive analysis of coal break on steep and thick coal seam 102m section
急倾斜厚煤层102m阶段煤体综放开采煤体致裂综合分析
16.
Duddell Street Steps and Gas Lamps
都爹利街石阶及煤气路灯
17.
The Status of CBM Work in Coal Resources Prospecting Stage and the Countermeasures
河北省煤炭资源勘查阶段的煤层气工作现状与对策
18.
Application of Oblique Sublevel Positive-Step Mining Method on Steeply-inclined Unstable Seam
急倾斜不稳定煤层斜分段正台阶采煤方法的运用