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oct 17, 2000 - 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。

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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。

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工业大事年表

2 Sep 2023

1

0

731

Date:

oct 17, 2000

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~ 25 years ago

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