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apr 22, 1974 - 1974年4月22日上海电缆厂制成22万伏高压申缆。

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1974年4月22日上海电缆厂制成22万伏高压申缆。

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工业大事年表

2 Sep 2023

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Date:

apr 22, 1974

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~ 51 years ago

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