The effect of defect and microstructure on soft magnetic properties were studied for FeCuNbSiB alloy by means of positron annihilation technique associated with X ray diffraction.是什么意思_The effect of defect and microstructure on soft magnetic properties were studied for FeCuNbSiB alloy by means of positron annihilation technique associated with X ray diffraction.在线翻译_英语_读音_用法_例句