 |
| |||
| 氧气吹炼钢 | |||
| 碱性氧气转炉钢 | |||
| 碱性氧吹钢; 氧气顶吹转炉钢 | |||
|
basic oxygen steel : 7 do fraz, 4 tematyki |
| Hutnictwo | 3 |
| Nauka o ziemi | 1 |
| Pospolicie | 2 |
| Technika i technologia | 1 |
|
| |||
| 氧气吹炼钢 | |||
| 碱性氧气转炉钢 | |||
| 碱性氧吹钢; 氧气顶吹转炉钢 | |||
|
basic oxygen steel : 7 do fraz, 4 tematyki |
| Hutnictwo | 3 |
| Nauka o ziemi | 1 |
| Pospolicie | 2 |
| Technika i technologia | 1 |