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管套口 : 36 phrases in 10 subjects |
| Animal husbandry | 1 |
| Architecture | 1 |
| Automobiles | 1 |
| Drilling | 2 |
| Electronics | 2 |
| General | 3 |
| Hydroelectric power stations | 1 |
| Metallurgy | 4 |
| Plastics | 2 |
| Technology | 19 |
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