| 摘要 |
Apparatus for processing a web of material by spark discharge includes a housing enclosing a roller electrode and an opposed electrode, the opposed electrode being mounted on a cover and the roller electrode being mounted in a drawer which is normally closed by the cover and which is movable out of the housing on rails in the longitudinal direction of the web. A second pair of electrodes may be provided, the roller electrode of the second pair being mounted on the cover and the opposed electrode being mounted in the drawer.
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