短語(yǔ)詞組短語(yǔ)admittance e operator 導(dǎo)納算子unifying admittance operator 導(dǎo)納統(tǒng)一算符admittance operator detail 導(dǎo)納算子unified admittance operator 導(dǎo)納統(tǒng)一算符 返回 admittance operator