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| mother oil | |||
| petroleum crude oil | |||
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石油 原油 : 43 phrases in 14 subjects |
| Agriculture | 1 |
| Architecture | 1 |
| Chemistry | 2 |
| Construction | 1 |
| Economy | 1 |
| General | 2 |
| Geology | 7 |
| Management | 1 |
| Mining | 2 |
| Nautical | 1 |
| Navigation | 1 |
| Oil / petroleum | 12 |
| Plastics | 1 |
| Technology | 10 |
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