計委首先要預測明年的需求量，再搞計劃。當係統很大時，預測需求是個很難的問題。一旦預測錯誤，就有過剩或不足的問題。

來源: 衡山老道於 2021-07-02 20:49:19 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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