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| |||
| pipe angle | |||
| holdbat | |||
| escutcheon; holderbat | |||
| 管子箍: 12 phrases in 6 subjects |
| Drilling | 3 |
| General | 1 |
| Geophysics | 3 |
| Nautical | 1 |
| Oil / petroleum | 1 |
| Technology | 3 |
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