在租用的电话线路上增加设备以改善数据传输线路的特性。

The addition of equipment to a leased telephone line to improve its data-handling characteristics.

youdao

在租用的电话线路上增加设备以改善数据传输线路的特性。

The addition of equipment to a leased telephone line to improve its data-handling characteristics.

youdao