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拉应力 : 52 phrases in 9 subjects |
| Caspian | 1 |
| Construction | 7 |
| Electronics | 8 |
| General | 12 |
| Geology | 1 |
| Mechanic engineering | 1 |
| Mechanics | 2 |
| Oil processing plants | 2 |
| Technology | 18 |
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