The results shown that there are some good rules for the characterization of freeradicals of coals in coalification. 结果表明,煤自由基特性在煤化过程中的规律性较好。
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。
"Many technical problems were solved with relation to low degree of coalification,low ash fusion temperature and low ash content. 解决了低变质程度煤、低灰熔点、低灰含量煤的气化技术。
The plasma temperature differs from one kind to another, the higher the coalification degree is, the higher the plasma temperature will be. 在相同实验条件下，不同煤种的等离子体温度不同，煤化程度越高等离子体温度越高。
Plutonic coalification is the leadiny factor in coalification in south Sichuan. This paper focuses attention on the effect of geological structure on distribution of coal type. 深成煤化作用是川南地区煤化作用的主导因素，本文着重阐明了构造对煤类分布的影响。
Moreover the geochemistry of trace elements in coal could be used to explain the coalification,and some elements as special marker could be used to compare the coal beds. 另外应用元素地球化学理论可以探讨成煤作用,一些微量元素可以用作煤层对比标志,微量元素对煤炭开采、加工、利用等方面都将产生影响。
