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single-blade |
单翼: 88 phrases in 14 subjects |
Agriculture | 4 |
Air defense | 2 |
Architecture | 1 |
Aviation | 14 |
Bridge construction | 2 |
General | 7 |
Nautical | 1 |
Oil / petroleum | 3 |
Rail transport | 3 |
Shipbuilding | 1 |
Skydiving | 13 |
Space | 1 |
Technology | 35 |
Wind Energy | 1 |