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| lubricating-oil circulation; lubricating-oil cycle | |||
| lubricating oil circulation | |||
| 润滑油循环: 16 phrases in 8 subjects |
| Automobiles | 3 |
| Chemistry | 1 |
| Compressors | 1 |
| Electric machinery | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Plastics | 1 |
| Technology | 7 |
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