| 摘要 |
The invention relates to a packing element, in particular for mass-transfer- and/or heat-exchange columns or towers through which gas and/or liquid flows, said packing element (1) comprising a number of exchange surfaces (4a-4f) substantially formed by the surfaces of half-wave-shaped and/or wave-shaped strips (3a-3f), wherein the packing element comprises at least one first group of strips (2a) including at least one half-wave-shaped and/or wave-shaped strip having a first period length I |
