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| oil-base; oil-based | |||
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油 基的 : 21 phrases in 9 subjects |
| Automobiles | 1 |
| China | 1 |
| Drilling | 1 |
| Ecology | 1 |
| General | 2 |
| Geophysics | 2 |
| Oil / petroleum | 2 |
| Oil processing plants | 1 |
| Technology | 10 |
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