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Relationships
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群体 |
Collections have members like Classes, but, unlike Classes, they have a position in space-time and members can be added and subtracted without thereby changing the identity of the Collection. Some examples are toolkits, repeated actions, football teams, and flocks of sheep.
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| Children |
广播网络 | BroadcastNetwork is the subclass of CommunicationSystems consisting of BroadcastingStations that are linked electronically and managed or owned by one organization. |
| | 有线电视系统 | A CableTelevisionSystem is a CommunicationSystem for cable television. |
| | 互联网服务提供商 | An InternetServiceProvider serves as an engineeringSubcomponent of the Internet for a given area. |
| | PublicAddressSystem | PublicAddressSystem refers to an electronic amplification system used as a communication system in public areas |
| | 无线电系统 | A RadioSystem consists of Radios, RadioStations, and other components that work together to make radio broadcasting possible in a given area. |
| | SatelliteTelevisionSystem | SatelliteTelevisionSystem is a CommunicationSystem where ArtificialSatellite is used to transfer TV signals |
| | 电话系统 | A TelephoneSystem consists of a complete interconnection of Telephones, MainTelephoneLines, and other components that work together to make telephonic communication possible from point to point in a given area. |
| | 电视系统 | A system for Broadcasting and receiving television signals. |