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| 石油管道干线 | |||
| 油流总管; 大型输油管; 输油管干线; 油流集管 | |||
| 原油长输管线 | |||
| 长距离输油管道; 干线输油管道 | |||
| 干线输〔石〕油管 | |||
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магистральный нефтепровод : 1 phrase in 1 subject |
| Oil / petroleum | 1 |
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