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jul 9, 1977 - 1977年7月9日设在江苏省沛县的上海大屯煤矿孔庆矿建成投产。

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1977年7月9日设在江苏省沛县的上海大屯煤矿孔庆矿建成投产。

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工业大事年表

2 Sep 2023

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Date:

jul 9, 1977

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~ 48 years ago

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