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| oil lubricating system | |||
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润滑油 系统 : 52 phrases in 12 subjects |
| Automobiles | 1 |
| Business | 1 |
| Compressors | 1 |
| Construction | 1 |
| Electronics | 1 |
| Geophysics | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 20 |
| Oil / petroleum | 4 |
| Oil processing plants | 2 |
| Shipbuilding | 3 |
| Technology | 16 |
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