短語詞組短語external grinding magnetic field 外部磁場(chǎng)external longitudinal magnetic field 外加縱向磁場(chǎng)external l magnetic field 外磁場(chǎng)external alternating magnetic field 交變磁場(chǎng)random external magnetic field 隨機(jī)外場(chǎng)external magnetic field driving 外磁驅(qū)動(dòng)external magnetic field effects 外加磁場(chǎng)效應(yīng)external magnetic field control 外加控制磁場(chǎng) 返回 external magnetic field