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| pinion ring; pinion rings | |||
| gear crown | |||
| |||
| gear ring; geared ring | |||
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齿轮冠 : 14 phrases in 8 subjects |
| Automobiles | 2 |
| Forestry | 1 |
| Mechanic engineering | 1 |
| Metallurgy | 2 |
| Oil / petroleum | 1 |
| Plastics | 1 |
| Shipbuilding | 3 |
| Technology | 3 |
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