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| 电 研 磨: 22 phrases in 10 subjects |
| Automobiles | 1 |
| Aviation | 3 |
| Electronics | 3 |
| Footwear | 1 |
| General | 3 |
| Mechanics | 2 |
| Oil / petroleum | 1 |
| Plastics | 1 |
| Space | 4 |
| Technology | 3 |
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