【化】 coking coal

1. 碳化作用煙煤的分解蒸餾，在沒(méi)有空氣的條件下進(jìn)行，為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餾分
   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.
2. 氨氣、煤焦油、焦煤都是煤氣生產(chǎn)過(guò)程中的副產(chǎn)品。
   Ammonia, coal tar and coke are all by-products obtained in the manufacture of coal gas.

焦的英語(yǔ)翻譯：

煤的英語(yǔ)翻譯：