| 摘要 |
A flow-through element, particularly an aeration element in electromagnetically screened rooms, particularly for cabins clad with sheet-metal or metal foils, having a low flow-through resistance and high screen attenuation, which consists of a porous sintered material, particularly of a metal-fibre felt (9) of metal fibres (8) sintered to one another or of a metal powder sintered below its melting point into plates. <IMAGE>
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