| 1. | Methods for collection of coal samples from truck
汽车运输煤样的采取方法 |
| 2. | Methods for collection of coal samples from ship
船舶运输煤样的采取方法 |
| 3. | Sampling method of coal sample for production
生产煤样采取方法 |
| 4. | Mechanical sampling of coal part 2 : method for sample preparation
煤炭机械化采样第2部分:煤样的制备 |
| 5. | Method of sampling run - of - mine coal
生产煤样采取方法 |
| 6. | Sampling for commercial coal
商品煤样采取方法 |
| 7. | Sampling of coal in seams
煤层煤样采取方法 |
| 8. | Sampling of coal in seam
煤层煤样采取方法 |
| 9. | Preparation of coal sample
煤样的制备方法 |
| 10. | The influence of drilling coal core sample ' s collection and coal quality determination on rational use of coal resources
正确采取煤芯煤样合理利用煤炭资源 |
