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| richness of details | |||
| 细部 详 细: 10 phrases in 7 subjects |
| Aviation | 2 |
| Economy | 2 |
| Electronics | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Hydroelectric power stations | 1 |
| International trade | 1 |
| Technology | 2 |
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