這樣更容易看清物理機製，再說這些近似的差別完全可以忽略不計。您如果不信，不妨代入實際物理量算算，就不難知道夢在誰邊了:)

來源: papyrus 於 2021-11-26 11:23:05 [舊帖] [給我悄悄話] 本文已被閱讀：次

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