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。
The transient electromagnetic method has a maximum depth because of continuous attenuation by transmission of electromagnetic signal in underground.
本文将联合时-频分析(JTFA)用于处理地球物理勘探中具有扩散性质的瞬变电磁场信号。
This paper USES joint time-frequency analysis (JTFA) for processing transient electromagnetic (TEM) field signals that have diffuse feature in geophysical exploration.
瞬变电磁法实时检测早期信号要求瞬变电磁仪具有很快的时间响应，这就需对仪器设计提出很高的要求。
In transient electromagnetic method (TEM) the real time detection of early signal requires the instrument to be fast time response, so a higher requirement is presented for the design of instrument.
瞬变电磁法实时检测早期信号要求瞬变电磁仪具有很快的时间响应，这就需对仪器设计提出很高的要求。
In transient electromagnetic method (TEM) the real time detection of early signal requires the instrument to be fast time response, so a higher requirement is presented for the design of instrument.
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