中國那13套化肥工程是尼克鬆訪華後從美國荷蘭等國引進的技術和設備。但朝鮮被封鎖，沒法引進。

來源: 無機塑料於 2022-04-17 20:09:04 [舊帖] [給我悄悄話] 本文已被閱讀：次

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