In powerline carrier wave application, signal disturbing and signal attenuation is the important reason of effecting signal transmission.
在电力载波技术的应用中，信号干扰和衰减是影响信号传输的重要原因。
The transient electromagnetic method has a maximum depth because of continuous attenuation by transmission of electromagnetic signal in underground.
由于电磁信号在地下传播时不断衰减，瞬变电磁测深法有一个最大探测深度。
Attenuation-moisture test was carded out based on the principle of UHF signal transmission attenuation.
根据特高频信号传输衰减原理进行衰减-吸潮性试验。
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