Dynamic characteristics of sulfur release during burning processes of coal liquefaction residuals have been studied. 研究了煤液化残渣燃烧过程中硫动态析出特性。
Coprocessing can be considered as a transitional technology between heavy resid upgrading and coal liquefaction. 煤油共炼可以看作是重质渣油提质和煤液化之间的过渡技术。
The problem was one of liquefaction of the sandy soil. 问题是沙质土壤的液化作用。
Mainly on the basis of microscopic investigation into the residual materials,the liquefaction behaviour of each maceral group is examined. 对固体残渣进行了显微研究，讨论了各种煤岩组分的液化性能。
