Pulse: a regular, significant abrupt change of short duration in the level of an electric voltage or current.

脉动：电压或电流作有规则的，短暂的和明显的突然变动。

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Pulse: a regular, significant abrupt change of short duration in the level of an electric voltage or current.

脉动：电压或电流作有规则的，短暂的和明显的突然变动。

youdao