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位驱动 : 33 phrases in 9 subjects |
| Air defense | 1 |
| Automobiles | 8 |
| Aviation | 1 |
| Electric machinery | 1 |
| Electronics | 9 |
| Hydroelectric power stations | 1 |
| Technology | 8 |
| Telecommunications | 2 |
| Wind Energy | 2 |
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