- This article introduced the performance of this kind of flushing fluid,and application of polycrylamide thick liquid thick dispersion system mud,suppression mud,froth mud in coal formation stratum.
- Wayaopu coal formation is one of the most important coal formations and the earliest idea of oils f rom terrigenous deposit possibly origin ated f rom it .
- Rule of coal formation in Shuanghua Coal field
- This article has analysed the environmental impact characteristics of gangue, which from Hunan coal formations, simultaneously according to the material composition characteristics of gangue to propose the reasonable comprehensive utilization way.
- We need to replenish our stocks of coal.
- She piled on more coal before the fire go out.