residual flux短语¹⁴⁴⁹⁷²⁺² 基本例句 剩余通 Controlled transformer switching can potentially eliminate these inrush currents and the optimal instant to energize the transformer is when the“prospective” flux is equal to the residual flux. 采用选相合闸技术在铁心中的预感应磁通与剩磁相等时刻投入变压器，可以有效地削弱励磁涌流。 cnki