A sealed composite bin for accommodating and delivering powder or particle material has multiple main bin units arranged vertically and connected with each other, each including an arched main top part, a cylindrical main side wall and a conical main bottom part. A ballast weight is secured to each barrier unit, either inside or outside of the hollow interior, to maintain them in an upright position in the water. The QCW-LD 101 is driven by an LD power source 102 capable of modulating the pulse waveform in time. The host includes device drivers of the Ethernet controller. In the present invention, it is determined whether or not the communication partner is to be called at least based on information relating the position of a communication apparatus possessed by the communication partner. The first connectors are coupled to a power inverter module and a first motorgenerator through the first apertures of the platform to electrically connect the power inverter module and the first motorgenerator to each other.