定義domain

A territory over which rule or control is exercised.

A sphere of activity, concern, or function; a field: the domain of history. See Synonyms at field.

Physics Any of numerous contiguous regions in a ferromagnetic material in which the direction of spontaneous magnetization is uniform and different from that in neighboring regions.

Law The land of one with paramount title and absolute ownership.

Law Public domain.

Mathematics The set of all possible values of an independent variable of a function.

Mathematics An open connected set that contains at least one point.

Biology Any of three primary divisions of living systems, consisting of the eukaryotes, bacteria, and archaea, that rank above a kingdom in taxonomic systems that are based on similarities of DNA sequences.

Computer Science A group of networked computers that share a common communications address.