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| drill casing; pipe casing | |||
| borehole casing | |||
| borehole lining; borehole tube; boring casing; drilled casing; drilled lining tube; perforated casing; tapping sleeve | |||
| 钻孔 套管: 43 phrases in 5 subjects |
| Earth sciences | 1 |
| Electronics | 1 |
| Engineering geology | 10 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Technology | 30 |
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