| |||
acoustic sounder; echo sounder | |||
echo-machine |
回声 仪 : 160 phrases in 23 subjects |
Acoustics | 1 |
Architecture | 3 |
Automobiles | 1 |
Business | 1 |
Construction | 4 |
Earth sciences | 8 |
Electronics | 5 |
Engineering geology | 7 |
Exhibitions | 2 |
Explosives and Explosive Ordnance Disposal | 1 |
Fish farming pisciculture | 1 |
Fishery fishing industry | 1 |
General | 4 |
Geophysics | 1 |
Hydroelectric power stations | 6 |
Mining | 2 |
Nautical | 3 |
Navigation | 3 |
Oil / petroleum | 12 |
Shipbuilding | 12 |
Space | 1 |
Technology | 79 |
United Nations | 2 |