Cardioid
| Dynamic Microphone
| cardioid | |
| commun. scient. | cardioïde |
| dynamic microphone | |
| earth.sc. el. | microphone électro-dynamique |
| |||
| cardioïde f | |||
| сагdioïde f | |||
|
Cardioid : 11 phrases in 6 subjects |
| Communications | 1 |
| Earth sciences | 1 |
| Electronics | 6 |
| Mathematics | 1 |
| Medical | 1 |
| Natural sciences | 1 |