自然电位基线偏移，微电极幅度差和声波时差增大，电阻率降低；
The base line of spontaneous potential is uplifted, the differences of microelectrode and acoustic travel time increased, resistivity decreased.
自然电位基线偏移，微电极幅度差和声波时差增大，电阻率降低；
The base line of spontaneous potential is uplifted, the differences of microelectrode and acoustic travel time increased, resistivity decreased.
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