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| petroleum hydrocarbon | |||
| petroleum hydrocarbons | |||
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石 油 烃 : 27 phrases in 8 subjects |
| Aviation | 1 |
| Chemistry | 3 |
| Geology | 1 |
| Oil / petroleum | 5 |
| Oil processing plants | 4 |
| Plastics | 1 |
| Technology | 11 |
| Textile industry | 1 |
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