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sonar : 43 phrases in 15 subjects |
Communications | 4 |
Construction | 1 |
Earth sciences | 10 |
Electronics | 6 |
General | 3 |
Geophysics | 4 |
Life sciences | 3 |
Measuring instruments | 2 |
Mechanic engineering | 1 |
Medical | 1 |
Medical appliances | 2 |
Natural resourses and wildlife conservation | 1 |
Natural sciences | 2 |
Physical sciences | 1 |
Technology | 2 |