coal tar pitch

• 煤焦沥青,硬煤沥青,煤焦油沥青

coal tar pitch的用法和样例：

例句

1. Mesophase microbeads were prepared from coal tar pitch by thermal condensation in atmospheric pressure.
   以煤焦油沥青为原料采用常压热缩聚工艺制备中间相沥青微球。
2. A pitch mesophase can be prepared from petroleum pitch andcoal tar pitch.
   从石油沥青和煤沥青中制取沥青中间相物质。
3. The experiments are done to develop globular activated carbon from coal pitch.
   摘要通过实验研究，利用煤沥青研制球形活性炭。