A base station control portion 200 selects one or plural signals from signals received by plural settable communication paths in accordance with the state of the wave. The interior of a casing member has an annular pressure booster for pressurizing the oil in an external hydraulic chamber. First and second polarizer films are placed on opposites of the container with the first polarizer film being located between the light source and the liquid suspension and the second polarizer film being located between the liquid suspension and the observer with the films oriented so that the two axis of orientation are not parallel to each other. Each of the leak diagnostic ports is associated with one of the leak lines. The computer communicates ultimately selected data to the printer and the printer prints the data on a label which is applied to a medical document. A taper angle of a sidewall of a tip end portion of the through silicon via connected to the second substrate is larger than a taper angle of a sidewall of the other portion thereof.