| http://www.w3.org/ns/prov#value | - By way of example, air or other thermally conductive medium may fill cavity 65 and compress/expand with pin movement within passageways 58A-58C. A small vent 67 may be included within end 62 as a matter of design choice to vent over-pressurization of material in cavity 65; vent 67 is shown with only one passageway 58A for ease of illustration even though system 50 may include multiple vents 67 as
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