data link

名词 data link:

1. an interconnecting circuit between two or more locations for the purpose of transmitting and receiving data
   同义词：link

1. In a network, pertaining to devices, programs, or domains that are connected by a data link or that share common control.
   在网络中，指由数据链路连接的或共享公共控制的设备、程序或区域。