1857年3月23日，美国纽约一家楼高五层的商店安装了首部使用奥的斯安全装置的客运升降机。
In March 23, 1857, the United States of New York a five storey shop installed the first use of Otis safety device for passenger lifts.
细胞商店自然也热能源，使该装置的电池供电工作时，可以是黑暗的。
The cells also naturally store thermal energy so the device the cells are powering can work when it is dark as well.
商店经理：没有动力我们事实上就破产了。我们所有的装置都根本无法运转。
SHOP MANAGER: Well, we're virtually out of business while the power's off. We've got no sets that we can operate at all.
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