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研制 型 : 23 phrases in 9 subjects |
| Automobiles | 2 |
| Aviation | 7 |
| Business | 1 |
| Cosmetics and cosmetology | 1 |
| Dentistry | 2 |
| Electronics | 1 |
| General | 1 |
| Space | 5 |
| Technology | 3 |
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