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| 落锤法 | |||
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weight dropping method : 6 do fraz, 4 tematyki |
| Chemia | 1 |
| Hutnictwo | 1 |
| Ropa / ropa naftowa | 1 |
| Technika i technologia | 3 |
|
| |||
| 落锤法 | |||
|
weight dropping method : 6 do fraz, 4 tematyki |
| Chemia | 1 |
| Hutnictwo | 1 |
| Ropa / ropa naftowa | 1 |
| Technika i technologia | 3 |