A new method to determine silicon dioxide in powdercoal ash has been stated. The method is feasible, fast and accurate.
提出了一种新的测定粉煤灰中二氧化硅的方法，该方法简单易行、快速、准确。
2
The comparison between the dry powdercoal gasification technology and coal water slurry gasification technology shows that the former is better than the latter.
对比了干粉煤气化和水煤浆气化两种流化床工艺，得出：前者优于后者。
3
According to the realistic application of cement mixing pile in treating soft soil ground of powdercoal ash, experiments constructions and testing have proved its practicability.