In three standards, ATSC is the single carrier transmission system, it is easy to support the fixed receiving, its peak average value quite being small.

在三大标准中atsc为单载波传输系统，能较好支持固定接收，峰均值比较小。

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Long span transmission line system is the lifeline project as the electric powe's carrier.

大跨越输电塔线体系作为高压电能输送的载体，是重要的生命线工程。

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Power line carrier is an economic and convenient data transmission technology used in distribution automation system.

电力线载波通信是配网自动化中一种经济、简便的数据传输方式。

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