以前《知識就是力量》雜誌有篇連載“精密度的鑰匙”就說了蘇聯塊規工業的起始，最後就是中國派人去實習。

來源: chufang 於 2021-07-24 09:04:38 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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