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aug 31, 1968 - 1968年8月31日上海电梯厂试制成功中国第一台单人自动扶梯。

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1968年8月31日上海电梯厂试制成功中国第一台单人自动扶梯。

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工业大事年表

2 Sep 2023

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Date:

aug 31, 1968

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~ 57 years ago

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