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螺旋桨 桨叶 : 54 phrases in 12 subjects |
| Aviation | 4 |
| Chemistry | 1 |
| Drilling | 1 |
| Electronics | 1 |
| General | 1 |
| Metallurgy | 1 |
| Nautical | 6 |
| Oil / petroleum | 1 |
| Shipbuilding | 7 |
| Space | 1 |
| Technology | 28 |
| Wind Energy | 2 |
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