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| 矿区使用费份额 | |||
| 特权权益; 产区权益; 石油的产区权益 | |||
| 矿区特许权权益 | |||
| 矿区特许使用权益 | |||
| 专利权益; 特权利益 | |||
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| 专利特权、开采权益 | |||
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royalty interest : 6 phrases in 3 subjects |
| Business | 1 |
| Economy | 3 |
| International trade | 2 |
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