 |
| |||
| sonagram; sonagraph; sound spectrograph | |||
| spectrograph | |||
| |||
| spectrograph apparatus | |||
|
spectrographe : 65 phrases in 12 subjects |
| Acoustics | 1 |
| Antennas and waveguides | 2 |
| Astronomy | 19 |
| Automated equipment | 6 |
| Electronics | 3 |
| Health care | 4 |
| High energy physics | 2 |
| Measuring instruments | 15 |
| Natural sciences | 5 |
| Physical sciences | 2 |
| Physics | 3 |
| Technology | 3 |