| 摘要 |
<p>The device comprises means (2, 3, 4) for moving an impact tool (1) essentially in parallel with the object (16) in the moving direction (x) of the object and means (17) for at the same time causing the impact tool (1) to perform impact motion across said moving direction (x) in order to transfer an impact to the object (16) and thereby generate said impact influence.</p> |
