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| pipe lining | |||
| pipe-line laying | |||
| pipe installation; pipe laying | |||
| pipelaying; pipeline laying | |||
| duct work; laying of pipe | |||
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管道铺设 : 26 phrases in 7 subjects |
| Architecture | 1 |
| Bridge construction | 1 |
| Chemistry | 1 |
| Engineering geology | 2 |
| Oil / petroleum | 4 |
| Oil processing plants | 2 |
| Technology | 15 |
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