In some cases, the use of pulse current still can reduce the lumber, improve the hydrogen cathodic current efficiency, thus reduce pinhole, striped and hydrogen brittleness, etc.

在某些场合下，使用脉冲电流还可以减少氢的析出、提高阴极电流效率，从而减少针孔、条纹和氢脆等。

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But the step motor efficiency is low, the ability is not big, load drag pulse equivalent cannot too big, speed range is not big.

但步进电机的效率低，拖动负载的能力不大，脉冲当量不能太大，调速范围不大。

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The small current of the slow pulse could efficiently decrease the ionic concentration polarization and increase the charging efficiency.

慢脉冲中的小电流有效地控制了离子浓差极化，提高了充电效率。

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It used a proprietary magnetic-pulse welding process, for example, to develop a lightweight, one-piece aluminum driveshaft that improves fuel efficiency for both light vehicle and commercial truck customers.

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