????:2024-06-14 23:10:59 ??:????
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?????????????6?????????????14? (??????????????)?14?????????????????(2024)??????????(SNEC)???????????????????????,??????????????(ESTI)???,???34.6%?
????????????????????,2023????????????11??????,??????????????????????????????????????33.9%?
???????????(IEEE)????William R. Cherry????,?????1980????????,???William R. Cherry????????????,??????,?,??,????????????????????????????(??????????????????) ???????????:???
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