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1972年8月是月 上海机床厂试制成功中国第一台Y70200大型齿轮磨床。 (aug 1, 1972 – jan 1, 0)

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1972年8月是月 上海机床厂试制成功中国第一台Y70200大型齿轮磨床。

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工业大事年表

ByLoo Qoo
2 Sep 2023
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Date:

aug 1, 1972
jan 1, 0
~ 0 days
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