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Butt-end
| Глоссарий по проходческим щитам (тоннелингу) |
Term used for square end jacking pipes.
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Preconditioning work, английский
That part of a project, usually before renovation work on a pipeline, that includes preparatory cleaning and internal inspection.
Pull-back force, английский
Tensile load applied to a drill string during pull-back. guided boring and directional drilling rigs are generally rated by their maximum pull-back force.
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