为输电线载波通信系统可靠执行它一定能避免，或者应付与，在它的通讯电路遇到的噪声的不同的类型。

For a power line carrier communications system to perform reliably it must be able to avoid, or cope with, the different types of noise encountered on its communications channel.

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通讯采用直流电源载波方法，信号线与电源线公用，不仅降低了布线成本，而且提高了系统可靠性。

Using the DC power carrier technology, the signal was modulated into the power wire, which can not only reduce the wiring cost, but also improve the system reliability.

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针对国内电厂输煤系统的现状，提出将先进的载波通讯技术应用到该系统中。

Aim at the actuality, the thesis presents the application of the electric carrier wave to this system.

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