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| пневматическое бурение; бурение с очисткой забоя воздухом | |||
| air drilling бурение с очисткой забоя воздухом | |||
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空气钻井 : 6 phrases in 3 subjects |
| Drilling | 3 |
| General | 1 |
| Oil / petroleum | 2 |
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