Ui is then removed and a known negative constant reference voltage U is integrated which produces a rampdown.
然后去掉Ui，对一个已知的负常值参考电压U积分一产生一个下降的斜坡。
2
In this paper, we carefully analyze the characteristics of density limit disruptions during current ramp-up, flattop and rampdown phases.
本文详细分析了出现在电流上升段，坪段及下降段密度极限破裂的特征。
3
The ground floor is located one meter below the street level and it is accessed via a rampdown, thus accentuating the feeling of weight in the volume of the first floor.