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| lubricating ring | |||
| lubrication ring; splash ring | |||
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润 滑油环 : 55 phrases in 13 subjects |
| Automobiles | 6 |
| Chemistry | 2 |
| Compressors | 3 |
| Drilling | 1 |
| Electric machinery | 2 |
| Electronics | 2 |
| General | 1 |
| Mechanic engineering | 2 |
| Metallurgy | 6 |
| Oil / petroleum | 4 |
| Plastics | 1 |
| Shipbuilding | 1 |
| Technology | 24 |
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