 |
| atenuação: 99 phrases in 16 subjects |
| Antennas and waveguides | 10 |
| Brazil | 4 |
| Electronics | 15 |
| Environment | 2 |
| Health care | 1 |
| Lighting other than cinema | 2 |
| Magnetics | 7 |
| Mathematics | 1 |
| Nuclear physics | 2 |
| Piezoelectric crystals | 9 |
| Radio | 18 |
| Radiology | 17 |
| Sound recording | 1 |
| Telephony | 7 |
| Thermal Energy | 1 |
| Transport | 2 |