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寄 : 24 phrases in 9 subjects |
| Automatic control | 1 |
| Electrochemistry | 1 |
| Environment | 2 |
| General | 3 |
| Magnetics | 2 |
| Microsoft | 5 |
| Piezoelectric crystals | 7 |
| Radio | 2 |
| Semiconductors | 1 |
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