The night city reflected in the surface of the waterThe night city reflected in the surface of the water
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
Reflection of mountains and plains on the water surfaceReflection of mountains and plains on the water surface
The surface of the ancient pond was covered with brown mudThe surface of the ancient pond was covered with brown mud
В математике: граница, отделяющая геометрическое тело от внешнего пространства. Наружная сторона чего-н..