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jan 30, 1979 - 1979年1月30日被列人市10个科研会战项目之一的 120路光导纤维通信系统研制成功。

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1979年1月30日被列人市10个科研会战项目之一的 120路光导纤维通信系统研制成功。

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工业大事年表

2 Sep 2023

1

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686

Date:

jan 30, 1979

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~ 46 years ago

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