 |
| |||
| hammer source; impactor; hammer-impact source; shock source | |||
| thumper | |||
| mechanical impactor | |||
| percussion source (сейсмических сигналов); percussion-type source (сейсмических сигналов); shock source (сейсмических сигналов) | |||
| ударный источник: 31 phrases in 4 subjects |
| Geophysics | 11 |
| Medical appliances | 2 |
| Oil / petroleum | 4 |
| Technology | 14 |