| http://www.w3.org/ns/prov#value | - If desired, the porous media of the member 510 can be comprised in whole or in part of translucent or transparent materials, granules, fibers, fibrils, or filaments which more readily transmit various types of radiation; e.g. ultraviolet radiation transmitted by the radiation source 518 could be used to kill bacteria or other undesirable living organisms within a member 510 comprised of transparen
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