 |
| power spectrum: 24 phrases in 10 subjects |
| Communications | 1 |
| Construction | 1 |
| Earth sciences | 10 |
| Electronics | 6 |
| Medical appliances | 1 |
| Optics branch of physics | 1 |
| Physics | 1 |
| Radio | 1 |
| Telephony | 1 |
| Transport | 1 |
|
| power spectrum: 24 phrases in 10 subjects |
| Communications | 1 |
| Construction | 1 |
| Earth sciences | 10 |
| Electronics | 6 |
| Medical appliances | 1 |
| Optics branch of physics | 1 |
| Physics | 1 |
| Radio | 1 |
| Telephony | 1 |
| Transport | 1 |