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极性效应
释义
极性效应
Encyclopedia
工学
﹝放电理论﹞
释
polarity effect
极性效应
在不均匀电场中,不同电压极性下,同一间隙的电晕初始电压和放电击穿电压数值存在不相同的现象。
理学
极性效应
释
polar effect
极性效应
由于取代基(与氢原子相比)具有给电子或是吸电子性质,使分子某些部分的电子密度下降或上升,从而使反应分子在某个阶段带有正电荷(或部分正电荷)或负电荷(或部分负电荷)的效应。又称电子效应。
Chemistry
>有机化学>物理有机化学>释义
polar effect
极性效应
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