Pairs of cable的意思|示意

The key activity in carrying out the algorithm, as described in the cable TV example, was maintaining a list of the costs of links between pairs of cities.

正如前面例子描述的那样，执行算法的关键行为是保存两城市间建立连接的造价表。

Modules at each end of the cable provide a phantom path for telephony signals between a telephone near the data set and a PBX, through both conductor pairs in a phantom circuit arrangement.

配置在电缆两端的模块通过幻象电路配置内的两对导线为一个靠近数据设备的电话机与一个PBX之间的电话信号提供一个幻象通路。