短語詞組短語electroacoustical reciprocity theorem 電聲互易定理Lorentz reciprocity theorem 洛倫茲互易定理dose reciprocity theorem 劑量互易定理acoustical reciprocity theorem 聲學(xué)互換定理frobenius reciprocity theorem 反演定理reciprocity theorem for networks 網(wǎng)絡(luò)的互易定理acoustic c reciprocity theorem 聲學(xué)互易定理Cubic reciprocity theorem 三次互反律dynamic reciprocity theorem 動力互等定理 返回 reciprocity theorem