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noun | verb | to phrases
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| 套管鞋下扩眼 孔 | |||
| 套管鞋下部扩孔 | |||
| 灌注桩扩底 | |||
| 底部扩大油井的 | |||
| 正在扩井眼 | |||
| 套管靴下扩孔; 扩孔; 井下开眼; 孔内扩孔; 扩大不足的钻孔 | |||
| |||
| 扩孔不足; 孔底扩大; 扩底; 下向扩孔 | |||
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underreaming : 8 phrases in 3 subjects |
| Engineering geology | 2 |
| Oil / petroleum | 4 |
| Technology | 2 |
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