A method and system for selecting feedback rules for an online auction. The sealing liquid device includes an annular packing made of rubber-like elastic material, the annular packing having a secured section fitted with fluid tight to one retaining surface between the first stationary seal ring and the seal flange and having a seal lip section fitting to the other contact face for sealing. The card carriage is movable between a first position proximate to the first card hopper and a second position proximate to the second card hopper. Another aspect of the method may comprise receiving feedback information comprising at least one of a selected modulation technique and coding rate via an RF channel, and transmitting subsequent data via said at least one of a plurality of RF channels which either modulated, or coded, based on the feedback information. The first and second electric conductors have rear end portions exposed at a rear end surface of the ceramic heater and electrically connected to the metallic shell and the central electrode via first and second connecting members, respectively.