coal-tar Bitch

• 煤沥青

coal-tar Bitch的用法和样例：

例句

1. 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。
2. 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。