| |||
sonic sounding | |||
acoustic sounding | |||
acoustic depth sounding (法); acoustical depth sounding (法); acoustic sounding (法); acoustical sounding (法); sonic depth finder (法); sonic sounding (法) | |||
| |||
acoustic depth sounding |
声 波测深 : 46 phrases in 10 subjects |
Earth sciences | 2 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 1 |
Geophysics | 2 |
Hydroelectric power stations | 1 |
Navigation | 2 |
Oil / petroleum | 4 |
Shipbuilding | 3 |
Technology | 27 |
United Nations | 3 |