下超调下超调指电压调整器或控制器在应对负荷变化时，电压或频率低于额定的量。
Undershoot Undershoot refers to the amount by which voltage or frequency drops below the nominal value as the voltage regulator or governor responds to changes in load.
下超调下超调指电压调整器或控制器在应对负荷变化时，电压或频率低于额定的量。
Undershoot Undershoot refers to the amount by which voltage or frequency drops below the nominal value as the voltage regulator or governor responds to changes in load.
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