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| 修整试验; 开发测试; 发展测试 | |||
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| 研制开发试验 | |||
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development testing : 8 phrases in 6 subjects |
| Automobiles | 1 |
| Aviation | 3 |
| Earth sciences | 1 |
| Economy | 1 |
| Shipbuilding | 1 |
| Space | 1 |
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