The rules for forming 49 elements in coal, macerals, and coalification degree were studied.
揭示出煤中49种元素与煤岩组分和煤化程度的成生联系规律。
The relationship between the properties of coals with different coalification degree and quality of their briquets were investigated.
研究了14种不同煤化程度煤的性质与其型煤质量的关系。
It has been found that the pore characteristics of lump coal mainly depend on degree of coalification, types of macerals, content of inorganic matters and intensity of fissuring.
研究表明：煤的孔隙特征主要取决于煤化程度、显微煤岩组份、矿物质含量和断裂破坏强度。
Greater degree of coalification makes more obvious anisotropy.
煤化程度越高，煤的各向电异性越明显。
Greater degree of coalification makes more obvious anisotropy.
煤化程度越高，煤的各向电异性越明显。
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