A shipping container having an internal plastic bag is described, as is the method of forming the container. Decoupling capacitors DM1 and DM2 are connected between the source line connected to the pad for high-speed circuits which supplies electric power to circuit block C1, and the ground line connected to a ground pad, and the capacitor array for high-speed circuits is formed. The control system receives registrations from the components for flush job messages, flush path messages, or both. It is preferable that the relationship A+B=3X is given where X represents the first pitch, A representing the second pitch, and B representing the third pitch. Accordingly, feedback overhead can be decreased in feedback transmission. Carbon dioxide emitted from the turbine is fed under pressure into an underground coal bed along with an air component after separating the oxygen from the air and fixed into the coal bed, and the coal bed methane is collected above the ground by a gas drive action of the gas and supplied to the gas turbine as fuel.