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手 电器 : 19 phrases in 10 subjects |
| Automobiles | 1 |
| Aviation | 1 |
| Economy | 1 |
| Electric machinery | 2 |
| Electronics | 1 |
| General | 2 |
| Mechanics | 1 |
| Shipbuilding | 1 |
| Space | 1 |
| Technology | 8 |
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