| 摘要 |
There comprises a display unit, a base unit having an information processing circuit, an input unit, and a rotary axis disposed in an orthogonal direction to the display unit, the base unit and the input unit for coupling therebetween. The display unit comes into an unexposed position when the input unit is turned in one direction on the rotary axis, and (ii) it comes into a exposed position when the input unit is turned in another direction on the rotary axis.
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