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acoustic depth finder; acoustical depth finder | |||
echo sounder; sonic echo sounder | |||
echo-sounder | |||
sonic depth finder |
回声测探仪 : 18 phrases in 11 subjects |
Architecture | 1 |
Construction | 1 |
Electronics | 1 |
Engineering geology | 2 |
Exhibitions | 2 |
Fishery fishing industry | 1 |
General | 2 |
Mining | 1 |
Oil / petroleum | 2 |
Shipbuilding | 1 |
Technology | 4 |