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| 上导向器 | |||
| upper guide: 23 phrases in 8 subjects |
| Drilling | 1 |
| Electric machinery | 5 |
| Electronics | 2 |
| Exhibitions | 1 |
| Hydroelectric power stations | 9 |
| Navigation | 1 |
| Space | 2 |
| Technology | 2 |
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