Noun:
-
intermediate between peat and bituminous coal
- The methods of making solid coal sorbent and liquid gelsorbent from lignite are also discussed in this paper.
列举了由褐煤制取固体煤质吸附剂和液体凝胶吸附剂的方法。
- TheASTM rankings for bituminous coal, sub-bituminous coal, or lignite fit the spreader combustion process well.
美中试验材料协会根据煤在燃烧时的性能把煤分为烟煤，次烟煤，褐煤几个等级。
