Experimental results and theoretical work show that the mechanisms of the direct charging and the corona charging are respectively the tip effect and collision effect.
由试验结果和理论分析得到直接荷电法的机理是尖端效应，电晕荷电法的机理为碰撞荷电。
Experimental results and theoretical work show that the mechanisms of the direct charging and the corona charging are respectively the tip effect and collision effect.
由试验结果和理论分析得到直接荷电法的机理是尖端效应，电晕荷电法的机理为碰撞荷电。
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