You put your clothes there, and the next day they are dry.
Other common solution is collapsible drying racks on your balcony: https://images.morele.net/i256/12998234_0_i256.jpg
Or just clothes lines (but usually people have some backup in case it rains).
I've never seen people use powered dryers for clothes. And we get our share of rain, and in the winter it gets to -20C sometimes.
