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| 行星轮系减速装置; 周转轮系减速装置 | |||
| 行星减速齿轮; 周转减速齿轮 | |||
| 周转减速装置 | |||
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| 周转减速装置 | |||
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epicyclic reduction gear : 15 phrases in 2 subjects |
| Nautical | 1 |
| Technology | 14 |
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