coal tar pitch的用法和樣例：
例句
- Mesophase microbeads were prepared from coal tar pitch by thermal condensation in atmospheric pressure.
以煤焦油瀝青為原料採用常壓熱縮聚工藝製備中間相瀝青微球。 - A pitch mesophase can be prepared from petroleum pitch andcoal tar pitch.
從石油瀝青和煤瀝青中製取瀝青中間相物質。 - The experiments are done to develop globular activated carbon from coal pitch.
摘要通過實驗研究，利用煤瀝青研製球形活性炭。
