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绕转轴 : 29 phrases in 13 subjects |
| Automobiles | 2 |
| Aviation | 1 |
| Construction | 2 |
| General | 4 |
| Gymnastics | 3 |
| Hydroelectric power stations | 1 |
| Metallurgy | 4 |
| Oil / petroleum | 1 |
| Plastics | 1 |
| Rail transport | 1 |
| Space | 1 |
| Technology | 7 |
| Wind Energy | 1 |
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