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2022-02-23
國(guó)際上,電壓暫降有兩種定義和兩個(gè)英文術(shù)語。國(guó)際電子電氣工程師學(xué)會(huì)(IEEE)普遍采用術(shù)語“voltagesag”,定義為:電壓方均根值突然下降至