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| mock-up test 1:1 | |||
| prototype test | |||
| prototype testing | |||
| 样机试验: 21 phrases in 8 subjects |
| Automobiles | 3 |
| Aviation | 2 |
| Electric machinery | 1 |
| Electronics | 1 |
| Metallurgy | 2 |
| Space | 5 |
| Technology | 6 |
| Textile industry | 1 |
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