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| винтовое зубчатое колесо; зубчатое колесо с косыми зубьями; шестерня с косыми зубьями | |||
| спиральная компоновка | |||
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螺 旋 装置 : 50 phrases in 6 subjects |
| Aviation | 2 |
| Electronics | 2 |
| General | 13 |
| Helicopters | 1 |
| Shipbuilding | 1 |
| Technology | 31 |
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