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| 钻管; 套管; 井管 | |||
| 套〔钻,井壁〕管; 钻〔套,井壁〕管 | |||
| 井壁管 | |||
| 钻孔灌注桩川套管 | |||
| casing pipe: 25 phrases in 9 subjects |
| Automobiles | 1 |
| Bridge construction | 1 |
| Drilling | 2 |
| Earth sciences | 1 |
| Engineering geology | 2 |
| Hydroelectric power stations | 2 |
| Metallurgy | 2 |
| Nautical | 1 |
| Technology | 13 |
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