Existente o situado dentro de la superficie límite o fronteriza de algo. (es)
Existing or situated within the limiting surface or boundary of something. An example is the portion of a building within the walls and under the roof, as opposed to those parts in contact with the outdoors. (en)
存在於或處於物件有限空間或範圍內的部分。 (zh-hant)
Iets dat zich binnen in het begrenzende vlak van iets bevindt of daar bestaat. (nl)