 |
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| bourdon m (регистр в органе) | |||
| бурдон: 8 phrases in 6 subjects |
| Aviation | 1 |
| Chemistry | 1 |
| Mechanic engineering | 1 |
| Meteorology | 3 |
| Oil and gas technology | 1 |
| Physics | 1 |
|
| |||
| bourdon m (регистр в органе) | |||
| бурдон: 8 phrases in 6 subjects |
| Aviation | 1 |
| Chemistry | 1 |
| Mechanic engineering | 1 |
| Meteorology | 3 |
| Oil and gas technology | 1 |
| Physics | 1 |