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| 原油的油田价格; 油井价格 | |||
| 开头价格; 井口价格 | |||
| 井头价格 | |||
| 井口价 | |||
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| 井口价格 | |||
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wellhead price : 4 phrases in 2 subjects |
| Economy | 2 |
| Oil / petroleum | 2 |
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