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| technological study | |||
| engineering and technological research | |||
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工程技术研究 : 16 phrases in 8 subjects |
| Aviation | 3 |
| Commerce | 1 |
| Earth sciences | 2 |
| Electronics | 1 |
| General | 1 |
| Oil / petroleum | 1 |
| Space | 2 |
| Technology | 5 |
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