[問題] 97中央機械動力
http://140.115.130.224:8080/~arhui/cexamn/exam/EN03_97_00.pdf
動力第三題
題目中這句 Viscous damping ensues, and the ratio of two successive
positive-displacement amplitudes is 4.
要怎麼用算式寫??????
還有為什麼要這樣寫?????
麻煩善心人士幫我解惑一下吧 (._.?)
感激不盡...
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