A cable retainer which has a plurality of link members coupled to each other in a bendable manner for retaining a plurality of cables therein. The circuit board includes a base lead plate attached to the circuit board and a base fixing protrusion extending from the base lead plate, wherein the circuit module is on and electrically connected to the bare cell. First and second closures are configured to close an entrance of the first end section and an exit of the second end section, respectively, about the pipe. The installation chamber is located between two longitudinal girders of the vehicle chamber, and the enclosure is fastened to both longitudinal girders. Also described is the use of such compounds in synthesis of nucleic acid polymers and in methods for determining a nucleotide base sequence. When an electric appliance is plugged into the device, a seal is formed between the face of the plug and the elastomeric cover.