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中孔 : 70 phrases in 14 subjects |
| Biology | 1 |
| Drilling | 1 |
| Electronics | 10 |
| General | 14 |
| Geology | 2 |
| Information technology | 1 |
| Mechanic engineering | 1 |
| Medical | 14 |
| Metallurgy | 3 |
| Military | 1 |
| Oil processing plants | 2 |
| Roll stock | 1 |
| Stamping | 1 |
| Technology | 18 |
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