-
对平行极化、方向指向阳极的样品，只要极化电场强度不是很大，宜选用正极性极化脉冲；
The positive polarity pulse will make better result for the samples than use negative polarity pulse.
youdao
-
对平行极化、方向指向阳极的样品，只要极化电场强度不是很大，宜选用正极性极化脉冲；
The positive polarity pulse will make better result for the samples than use negative polarity pulse.
youdao