在视频中，可以看到这个身着粉色衣服的老太太在下行电梯推着手推车。她到达电梯底部后，将手推车推了下来，然后继续往前走。
In the video, the woman, wearing pink, is seen pushing her trolley down a flat escalator. She reaches the bottom and calmly pushes it off before walking ahead.
而限速器是限制电梯轿厢超速下行的安装装置。
The speed limiter is to limit the installation of the elevator car speeding down devices.
电梯在这里分别向上及向下行走各一次。
The elevator travels upwards and downwards once respectively here.
电梯在这里分别向上及向下行走各一次。
The elevator travels upwards and downwards once respectively here.
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