| |||
siren | |||
phono meter; sound locator | |||
sound detector; detector | |||
| |||
sound detector |
测音 器: 32 phrases in 12 subjects |
Aviation | 1 |
Earth sciences | 1 |
Electronics | 3 |
Fishery fishing industry | 1 |
General | 3 |
Information technology | 2 |
Metallurgy | 1 |
Rail transport | 1 |
Shipbuilding | 1 |
Space | 2 |
Technology | 13 |
Telecommunications | 3 |