Stone surface against the background of the night skyStone surface against the background of the night sky
A lonely island on the background of the sea surfaceA lonely island on the background of the sea surface
The journey of a lonely ship on the expanses of the water surfaceThe journey of a lonely ship on the expanses of the water surface
Reflection of the castle in the surface of the waterReflection of the castle in the surface of the water
Berth near the smooth surface of the lake at sunsetBerth near the smooth surface of the lake at sunset
A lonely boat on the blue surface of the sea under white cloudsA lonely boat on the blue surface of the sea under white clouds
В математике: граница, отделяющая геометрическое тело от внешнего пространства. Наружная сторона чего-н..