In each of sub-decoding circuits at a first stage provided for a plurality of output candidates arranged adjacently, for selecting corresponding output candidates in accordance with a bit of multibit data for transmission to subsequent stage sub-decoding circuits, unit decoders are arranged in parallel in a direction perpendicular to an arranging direction of the output candidates. The filter strip may be made of a deformable material which can be positioned on one end of the rolling sheet. The tensile armour element is then applied to the fluid-retaining layer, being wrapped around the fluid-retaining layer by virtue of the rotation of the layer, the linear translation of the layer, and the fixed position of the tensile armour element feed. The mirror can direct an optical signal from one of the optical channels into another of the optical channels. Using either active circuits or a passive component which produces a predetermined voltage drop in the respective sensor, two electrode consumable anode oxygen sensors can be provided which do not evolve hydrogen during operation.