Digital calculation showed that under the condition the demagnetizing field strength of a cuboid steel had not only negative value but also positive and zero...

• 数值计算表明,这时方钢的退磁场既有负值(传统意义的退磁场),也有正值(有效磁场大于磁化场)和零值(有效磁场与磁化场相等)。