In order to provide a turbine blade fatigue life evaluating method for quantitively evaluating the fatigue life of a turbine blade, the turbine blade is determined to be within its fatigue life if the creep elongation strain in the longitudinal direction of the turbine blade is less than 0. The induction coil may be configured to conduct an alternating current and generate a magnetic field in response to the alternating current. By means of the wireless application of the mobile terminal, the user reserves a hotel room. A pocket cover has a front portion concealing the frame and has a folding side portion disposed between side and bottom edges of the frame and the door panel along corresponding edges of the recess.