| 摘要 |
A pig (10) for cleaning of a pipeline (1), the pig (10) comprising: a body (11) for passing through the pipeline (1), wherein the body (11) comprises a soft and preferably elastic material and has an outer surface (12) for cleaning an inner surface (2) of the pipeline (1); and a vibration unit (20) within the body (11) for generating vibrations and for transmitting the vibrations to the outer surface (12) of the body (11), wherein the vibration unit (20) is enclosed by the outer surface (12).
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