sonar | |
tech. | sonar |
background noise | |
earth.sc. | achtergrondlawaai; achtergrondruis; grondruis |
sonar : 25 phrases in 9 subjects |
Communications | 5 |
Earth sciences | 8 |
Electronics | 2 |
General | 2 |
Life sciences | 4 |
Measuring instruments | 1 |
Mechanic engineering | 1 |
Physical sciences | 1 |
Technology | 1 |