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| 导辊; 调节辊; 传动辊 | |||
| control roll: 60 phrases in 9 subjects |
| Automobiles | 3 |
| Aviation | 7 |
| Electronics | 2 |
| Fishery fishing industry | 1 |
| Metallurgy | 22 |
| Navigation | 2 |
| Space | 11 |
| Steel production | 7 |
| Technology | 5 |
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