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| 总管; 母管; 主蒸汽管 | |||
| 主管道 | |||
| 干管; 主管路; 主管线; 主管路主管线 | |||
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главный трубопровод : 9 phrases in 4 subjects |
| Electronics | 2 |
| General | 1 |
| Nautical | 1 |
| Nuclear and fusion power | 5 |
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