- KUZNETSK BASIN COALS FOR ACTIVE COALS PRODUCTION.
- Replaced some cement clinker by flue dust activated coal gangue as admixture and tested its setting time and strength.
- The results show that the pozzolanic activity of thermal activated coal gangue in the north of China is stronger than that in the south.
- The orient has been playing an active role in the world economy.
- He is an active member of the school's stamp club.
- We need to replenish our stocks of coal.