Disclosed is a slide type portable terminal which includes a clean back cover covering a back surface of a sliding housing during the sliding of the sliding housing. Therefore, the exhaust manifold can be located as close as possible to a rear face of the engine block to ensure that travel wind is difficult to collide with the exhaust manifold, thereby preventing a drop in temperature of an exhaust gas to early raise the temperature of the exhaust emission control device. , a customer network of associated with a virtual private network. The methods utilize lofexidine compositions formulated for transmucosal delivery through nasal, sublingual, or buccal routes of administration in an amount effective for the treatment of the drug indications. For this purpose, a function execution method according to the present invention is performed by comprising: detecting a first touch input touched on a display unit; detecting a drag created by a second touch inputted while maintaining the first touch; and displaying one or more sub-functions included in a function selected by the first touch along a trace of the detected drag on the display unit. The pressing unit is disposed between the second adjustment unit and the drag mechanism so as to come into contact with both, and is non-rotatable but axially movable with the spool shaft.