| |||
| 変調周波数 (へんちょう・しゅうはすう) | |||
|
modulation frequency : 20 phrases in 8 subjects |
| Computers | 3 |
| Electronics | 3 |
| General | 3 |
| Physics | 6 |
| Piezoelectric crystals | 2 |
| Radio | 1 |
| Technology | 1 |
| Telegraphy | 1 |
| |||
| 変調周波数 (へんちょう・しゅうはすう) | |||
|
modulation frequency : 20 phrases in 8 subjects |
| Computers | 3 |
| Electronics | 3 |
| General | 3 |
| Physics | 6 |
| Piezoelectric crystals | 2 |
| Radio | 1 |
| Technology | 1 |
| Telegraphy | 1 |