| http://www.w3.org/ns/prov#value | - le, silicone (polyorganosiloxane), (poly)urethane, isoprene rubber, neoprene, etc.); an organic or inorganic crystal; combined with an electrically conducting filler such as a metal (for example, nickel, silver, copper, etc.) or a semiconductor (for example, carbon black, titanium dioxide, etc.) with a particulate or foam structure; combined with a metal or semiconductor electrode pressure contact
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