| 摘要 |
<p>The system enables cleaning up of asbestos fibers, PCBs or PAK layers, coal tar pitch etc. Dams (4,5) are put up on either side of the area to be cleaned and a housing (10) containing a movable dam (2) is erected between the dams. Crossbeams (3) act as supports for the housing. Workshops (6,6') and air blowers (8) are erected just outside the area and there are silos (7) for sand and portable office accommodation (9). High-pressure water jets may be used to clean surfaces.</p> |
