1.
Graphite deposit of Heye was formed by metamorphism of the Permian coal bed.
荷叶石墨矿是由二叠系煤层变质而成的石墨矿床,石墨与煤呈同层异矿关系。
2.
Outbursts of coal and gas prone is related to the evolution history of deformation and coalification of coal-seams.
煤与瓦斯突出倾向与煤层的变质变形历史有关。
3.
Coal Property Characteristics and Change Rules of Yongqing Group Coal Bed in Jixi Basin
鸡西盆地永庆组煤层的煤质特征及其变化规律
4.
A Discussion on Coal Volatile Matter Features and Metamorphic Factors in Weizhou Mine Area,Ningxia
宁夏韦州矿区煤层挥发分特征与变质因素探讨
5.
Electric Character Logging Method for Complex Structure of Low Metamorphic Lignite Layer
低变质复杂结构褐煤层的电性测井方法
6.
Coalbed methane(CBM) development potential of low rank coal:A case study from Ordos Basin
低变质煤的煤层气开发潜力——以鄂尔多斯盆地侏罗系为例
7.
The coal in Xinmin district of Shenfu coalfield, Shaanxi belongs to the low-metamorphic unsticky and long flame coal of Jurassic period.
陕西省神府煤田新民区赋存的煤层为休罗纪低变质不粘煤和长焰煤。
8.
thick-layer apt to oxidation type characterized by large thickness of coal seam and low metamorphic degree, and transition type.
以煤层厚度大和低变质程度为特征的厚层氧化类型; 过渡类型.
9.
Degree of metamorphism steps up along the strike from south to north, whereas steps up along the dip in company with depth.
在走向上煤的变质程度由南向北逐渐增高,在倾向上煤层随赋存深度的增大变质程度逐渐增高。
10.
The formation and development of the diwa controlled the distribution and metamorphism of coal.
地洼的形成与发展对中,古生代煤层赋存、变质关系密切。
11.
A Study on the Law of Rock Movement and Soil Variation in Mining of Coal Seams of Thick Loess and Thin Bedrock
厚黄土薄基岩煤层开采岩移及土壤质量变异规律的研究
12.
Discussion on Seam Comparison Methods in Coalfield Geological Exploration
煤田地质勘查中煤层对比方法的探讨
13.
The Study of Varied Thickness of Coal Seam Using MCNP Method in the Coal Quality Analysis Experiment by Neutron
中子煤质分析实验中应用蒙特卡罗模拟方法进行煤层厚度变化的研究
14.
Coal petrography variation in the sequence stratigraphic frame of the Jurassic coal measures of Dameigou mine area in Northern Qaidam Basin
柴北缘大煤沟矿区侏罗纪煤系层序地层及其煤岩变化特征
15.
Coal geology emphatically studies always stratigraphy and sedimentology of coal and coal-bearing strata.
煤地质学一直偏重于对煤和含煤地层的地层学和沉积学的研究。
16.
On the Deposition Factors Affecting the Seam Distribution,Seam Thickness and Coal Quality
浅议影响煤层分布和煤层厚度及煤质的沉积因素
17.
Coal Quality Characteristics of Hongxiugou Group in Northern Coal Bearing Stratum of Hongxiugou Basin
红锈沟盆地北部含煤地层红锈沟组煤层煤质特征
18.
A soft, brownish - black coal in which the alteration of vegetable matter has proceeded further than in peat but not as far as in bituminous coal.
褐煤一种褐色软质煤，植物性物质的变化程度比泥煤重但比烟煤轻