A clip is disclosed which is capable of applying significant retention force via a rotatable cam arm while being easily removable due to the cam arm and a separate removal arm. The system includes an interface to display a pattern on a projection surface and a controller to distort image data responsive to the pattern. Further, quantized magnitude and phase coefficients are predicted based on properties of the audio signal and corresponding MCLT coefficients to reduce the bit rate overhead in encoding the audio signal. The personal destinations displayed on the display unit are switched to destinations other than the personal destinations according to selection by the user. The method may also include inhibiting the introduction of the secondary fuel when the engine acceleration rate is below an expected acceleration rate. A slurry film is formed on a predetermined portion of the solid electrolytic body through this dipping treatment.