| |||
sounding device; sondol | |||
sonar | |||
sonic echo sounder | |||
fathometer | |||
sonic depth finder | |||
depth finder | |||
| |||
depth finder |
回 声探测仪: 16 phrases in 10 subjects |
Architecture | 3 |
Electronics | 2 |
Engineering geology | 2 |
Exhibitions | 1 |
Fish farming pisciculture | 1 |
Fishery fishing industry | 1 |
Mining | 1 |
Oil / petroleum | 1 |
Shipbuilding | 1 |
Technology | 3 |