In a spectroscopic imaging method for a magnetic resonance apparatus, an excitation radio-frequency pulse having a flip angle of approximately 90 is emitted, followed by transmission of a rephasing radio-frequency pulse having a flip angle of 180, activation of a phase-coding gradient, and activation of a readout gradient and acquisition of a magnetic resonance signal. An impedance matching circuit is connected between a transmission line and a DUT in an input-output circuit of a semiconductor test apparatus. The method further include dissipating power via the load resistor to clamp the open circuit voltage of the photovoltaic module, synchronizing an output voltage of the inverter module with a voltage of a grid and then coupling the inverter module to the grid and de-coupling the load resistor across the inverter module. Therefore, in the case of the second command interval specification, a command interval is substantially shortened. 0, an unstretched polyimide film which is formed from a polyimide having a repeating unit represented by formula :2\u2014, \u2014OSi2\u2014, \u2014C2H4O\u2014, and \u2014S\u2014) and which has an organic solvent content of 0.