| 摘要 |
A filter element (1) for filtration apparatus includes a lattice comprising a pair of opposed structures (6, 8), each structure comprising an array of parallel members (6) defining a multiplicity of apertures (20) communicating between opposite sides of the structure, the apertures being at least partially non-coincident with apertures in the opposed structure. The filter element may be enclosed in a separate frame (3, 4). |
