With upward decreasing grain size the deflection of the self-potential curve also decreases to form a bell-shape.

随着向上去粒度减小，自然电位曲线的偏斜也减弱而形成钟状。

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With upward decreasing grain size the deflection of the self-potential curve also decreases to form a bell-shape.

随着向上去粒度减小，自然电位曲线的偏斜也减弱而形成钟状。

youdao