It shows in theory that the frequency domain sounding in near zone of the line current source is possible.
通过对计算结果的分析，在理论上说明了线源频率域近区测深的可行性。
In the dramatic mountain terrain, seismic wave can't be received easily; DC and time domain sounding are limited by the above reason.
在地形起伏剧烈的山区，地震波信号接受、直流及时间域电测深深度等因素限制了以上测深方法的发挥。
In the dramatic mountain terrain, seismic wave can't be received easily; DC and time domain sounding are limited by the above reason.
在地形起伏剧烈的山区，地震波信号接受、直流及时间域电测深深度等因素限制了以上测深方法的发挥。
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