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| 螺旋线角 | |||
| 螺旋角 | |||
| 螺旋升角; 节面角 | |||
| helix angle: 12 phrases in 6 subjects |
| Automobiles | 1 |
| Aviation | 1 |
| Genetics | 1 |
| Mechanics | 1 |
| Shipbuilding | 1 |
| Technology | 7 |
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