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| research and engineering | |||
| 研 究与设计: 15 phrases in 9 subjects |
| Agriculture | 1 |
| Animal husbandry | 2 |
| Aviation | 2 |
| Communications | 1 |
| Earth sciences | 2 |
| General | 2 |
| Hydroelectric power stations | 1 |
| Name of organization | 1 |
| Space | 3 |
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