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sonar | |||
active sonar apparatus (ocean research) | |||
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sonars |
sonar : 84 phrases in 14 subjects |
Communications | 8 |
Earth sciences | 10 |
Electronics | 2 |
Fish farming pisciculture | 1 |
Fishery fishing industry | 46 |
General | 1 |
Life sciences | 4 |
Measuring instruments | 1 |
Mechanic engineering | 1 |
Natural resourses and wildlife conservation | 1 |
Natural sciences | 2 |
Physical sciences | 1 |
Technology | 1 |
United Nations | 5 |