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whynot910:这个不少文献上应该能查到的吧 (2018-06-04 07:19) oH@78D0A
whynot910:很奇怪,给出解析解,如果不是本文推导出,应该有参考文献才符合学术规范吧 (2021-05-17 21:11) :gT4K-Oj