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| 方向舵控制器 | |||
| 用舵操纵; 航线控制 | |||
| rudder control: 18 phrases in 6 subjects |
| Aviation | 6 |
| Project management | 2 |
| Shipbuilding | 1 |
| Skydiving | 1 |
| Space | 6 |
| Technology | 2 |
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