| 摘要 |
<p>The system has a movable support (4) provided with a particle projection unit comprising a particle projection device (10) that is movable in rotation around a longitudinal axis of the movable support. A recovery unit (2) recovers a portion of projected particles, and a recycling unit (3) recycles the recovered particles. The particle projection unit forms a work unit (1) with a recovery device (14) of the recovery unit. A winch displaces the movable support inside a pipe to be treated (C).</p> |
