The foam marking device of the present invention includes a solution tank with a tube extending upwardly therein. The semiconductor memory device may comprise a control unit and a latency control unit. The control system uses data derived from monitoring the wind farm power output and the power transmission line, and employs system-modeling algorithms to predict narrow-band wind speed conditions. At this timer, because the surplus adhesive is blocked when flowing into the groove, the surplus adhesive does not overflow easily toward the inner side of the groove.