| |||
émission radiotéléphonique à modulation d'amplitude |
amplitude-modulated: 20 phrases in 9 subjects |
Communications | 7 |
Earth sciences | 1 |
Electric motors | 1 |
Electronics | 5 |
Life sciences | 1 |
Materials science | 1 |
Medical appliances | 1 |
Technology | 2 |
Transport | 1 |