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| utility model | |||
| working model | |||
| 实用 模型: 13 phrases in 8 subjects |
| Business | 1 |
| Electronics | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 1 |
| International trade | 1 |
| Space | 1 |
| Technology | 6 |
| Water resources | 1 |
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