|
noise suppression : 49 phrases in 16 subjects |
| Astronautics | 2 |
| Automobiles | 1 |
| Aviation | 4 |
| Computer networks | 2 |
| Electronics | 4 |
| General | 1 |
| Geophysics | 6 |
| Medical appliances | 1 |
| Military | 6 |
| Oil / petroleum | 1 |
| Oilfields | 1 |
| Quantum electronics | 2 |
| Radioengineering | 1 |
| Technology | 14 |
| Telecommunications | 2 |
| Transport | 1 |