发明和应用，发明和改良的差别区分下？四大还是四小，没必要刻意抬高，同样没有必要刻意贬低。

来源: stonebench 于 2022-02-19 21:15:55 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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