Landscape of the long bridge at sunset over the water surfaceLandscape of the long bridge at sunset over the water surface
A quiet autumn dawn over the mirror surface of the lakeA quiet autumn dawn over the mirror surface of the lake
Autumn landscape of colorful trees reflected in the surface of the riverAutumn landscape of colorful trees reflected in the surface of the river
View of the flowing sea surface beyond the edge of the evening horizon, two lonely rocks look at each otherView of the flowing sea surface beyond the edge of the evening horizon, two lonely rocks look at each other
Quiet surface of the lake, landscape against the background of mountainsQuiet surface of the lake, landscape against the background of mountains
В математике: граница, отделяющая геометрическое тело от внешнего пространства. Наружная сторона чего-н..