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1980年5月是月上海电缆厂试制成功国产第一根35万千伏铝芯交联聚乙烯绝缘电缆。 (1 mai 1980 – 1 janv. 0)

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1980年5月是月上海电缆厂试制成功国产第一根35万千伏铝芯交联聚乙烯绝缘电缆。

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工业大事年表

2 sept. 2023

1

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689

Date:

1 mai 1980

1 janv. 0

~ 0 days

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