communication line

基本解释

It can meet in irrigated area where no power, no communication line, nobody on duty and the natural conditions poor situation.
此仪器能够适应在灌区无供电、无通讯、无人值守以及自然条件差的情况下使用。
North Korea says it will cut off a military communication line with South Korea and take other actions in response to what it says are provocations by the South.
朝鲜表示将要切断与韩国的一条军事通讯线路，并采取其他行动来回应它所称来自韩国的挑衅。
okread.net
Discusses the magnetic coupling effects on a communication line from a crossing power line, and gives two ways to calculate the mutual inductance between crossing lines.
推导了具有连续分布源的传输线上电压和电流的分布规律，给出了两种计算交叉跨越时通信线与强电线间互感系数的公式，并对它们进行了数值计算和比较。

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Power line communication's first battleground looks to be Manassas, Virginia.
FORBES: Magazine Article