 |
модель трещины
| Перкинса
| Керна
Нордгерна
| модель трещины | |
| avia. | crack model |
| Перкинс | |
| math. | Perkins |
| керн | |
| auto. | center mark |
| oil | core salvage; saturated core |
| |||
| crack model | |||
| модель трещины: 17 phrases in 7 subjects |
| Aviation | 3 |
| Drilling | 3 |
| Makarov | 1 |
| Nanotechnology | 2 |
| Oil / petroleum | 1 |
| Sakhalin | 3 |
| Sakhalin R | 4 |