| 1 | Moreover, the paper offers opinion about how to develop hydraulic system of scraper. | |
| 2 | The economical haul distances of bulldozers, scrapers and dump trucks are different. | |
| 3 | More very similar scrapers will be needed very shortly after this job. | |
| 4 | Diesel driven LHD units are highly efficient ore hauling equipment in underground mining operations. | |
| 5 | The application of ST-1.5 type scrapers in mining is introduced in this paper. |