Ui is then removed and a known negative constant reference voltage U is integrated which produces a ramp down.

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。

In this paper, we carefully analyze the characteristics of density limit disruptions during current ramp-up, flattop and ramp down 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。

The ground floor is located one meter below the street level and it is accessed via a ramp down, thus accentuating the feeling of weight in the volume of the first floor.

首层比街面标高低一米，通过一个下沉坡道可以到达入口，这种布局为的是强调二层体块的厚重感。

I turned on my heels and started down the ramp only to be shoved, hard, by something.

我拔腿向斜坡下跑去，却被什么东西狠狠地撞了一下。

Lillian was coming down the ramp from the museum.

莉莲正从博物馆沿着斜坡走下来。