The experiments are done to develop globular activated carbon from coal pitch.
通过实验研究，利用煤沥青研制球形活性炭。
The rule is important for globular inclusion control and improvement of steel quality.
对控制钢中点状夹杂物，提高钢材质量有重要意义。
The rule is important for globular inclusion control and improvement of steel quality.
对控制钢中点状夹杂物，提高钢材质量有重要意义。
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