 |
| |||
| widmowy; spektralny | |||
| natężenie widmowe; gęstość widmowa | |||
| spectral: 32 phrases in 13 subjects |
| Antennas and waveguides | 2 |
| Automatic control | 1 |
| Chemistry | 1 |
| Communications | 1 |
| Construction | 2 |
| Cultural studies | 1 |
| Earth sciences | 1 |
| Environment | 1 |
| Lighting other than cinema | 11 |
| Mathematics | 8 |
| Natural sciences | 1 |
| Transport | 1 |
| Vacuum tubes | 1 |