- SZ), now had to face the agony of coal dropped.
- The measures against coal arch camber in planomural coal bin and coal drop pipe are proposed by analyzing practical cases.
- The influencing factors of coal arch camber in planomural coal bin and coal drop pipe with rectangular or circular cross section during coal drop are studied theoretically.
- The Fracture Analysis of 125 chain of the chain-bucket coal drop
- We need to replenish our stocks of coal.
- She piled on more coal before the fire go out.