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| 范围 | |||
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範囲 : 54 phrases in 8 subjects |
| Automatic control | 5 |
| Economy | 1 |
| Electric machinery | 1 |
| Electronics | 15 |
| Piezoelectric crystals | 5 |
| Power system protection | 4 |
| Technology | 22 |
| Welding | 1 |
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