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downhole video
| service
| downhole video | |
| geophys. | 井下电视; 井下视频 |
| service | |
| econ. | 署; 司 |
| hydroel.st. | 供给 |
| interntl.trade. | 劳务 |
| met. | 维护; 设施 |
| |||
| 井下视频系统 | |||
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| 井下电视 | |||
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downhole video : 2 phrases in 1 subject |
| Geophysics | 2 |
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