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jan 21, 1993 - 1993年1 月21日上海第十二机床厂研制成功中国第一台印刷线路板数控加工中心。

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1993年1 月21日上海第十二机床厂研制成功中国第一台印刷线路板数控加工中心。

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工业大事年表

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jan 21, 1993

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~ 32 years ago

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