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| 燃料和润滑剂 | |||
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| 燃料与润滑剂 | |||
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fuels & lubricants : 9 phrases in 6 subjects |
| Automobiles | 2 |
| Aviation | 1 |
| Oil processing plants | 2 |
| Rail transport | 1 |
| Shipbuilding | 1 |
| Technology | 2 |
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