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17 out 2000 ano - 2000年10月17日上海贝尔有限公司成功开发出基于512交换系统该项技术在国内外同行中尚属首创，填补电信交换机旁路技术空白。

Descrição:

2000年10月17日上海贝尔有限公司成功开发出基于512交换系统该项技术在国内外同行中尚属首创，填补电信交换机旁路技术空白。

Adicionado na linha do tempo:

工业大事年表

2 set 2023

1

0

688

Data:

17 out 2000 ano

Agora

~ 24 years ago

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