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30 jan 1979 ano - 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。

Descrição:

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。

Adicionado na linha do tempo:

工业大事年表

2 set 2023

1

0

686

Data:

30 jan 1979 ano

Agora

~ 46 years ago

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