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| 化学繊維 news2 nf39 (かがく・せん’い) | |||
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fibra : 40 phrases in 7 subjects |
| Antennas and waveguides | 30 |
| Electric machinery | 1 |
| Electronics | 1 |
| General | 4 |
| Isolation | 2 |
| Power lines | 1 |
| Radio | 1 |
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