bituminous coal

名词 bituminous coal:

1. rich in tarry hydrocarbons; burns readily with a smoky yellow flame
   同义词：soft coal

1. The destructive distillation of bituminous coal, done in the absence of air in order to obtain coke and other fractions having a greater percentage of carbon than the original material.
   碳化作用烟煤的分解蒸馏，在没有空气的条件下进行，为得到比最初的原料所含碳的百分比大得多的焦煤以及其它馏分
2. What can we do with the bituminous coal?
   这些烟煤可以用来做什么？