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| 试验样机 | |||
| test prototype: 21 phrases in 10 subjects |
| Automobiles | 2 |
| Aviation | 4 |
| Bridge construction | 1 |
| Economy | 1 |
| Electric machinery | 2 |
| Engineering geology | 2 |
| Hydroelectric power stations | 1 |
| Rail transport | 1 |
| Space | 1 |
| Technology | 6 |
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