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分量 : 16 phrases in 9 subjects |
| Antennas and waveguides | 1 |
| Electronics | 1 |
| General | 3 |
| Lighting other than cinema | 1 |
| Microsoft | 1 |
| Nuclear physics | 2 |
| Physics | 2 |
| Piezoelectric crystals | 1 |
| Radiology | 4 |
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