磁滞曲线 meaning in English

bh loop
ferrograph
hysteresis curve

Test method for magnetic properties of high - coercivity permanent magnet materials using hysteresigraphs
使用磁滞曲线绘制仪测试高矫顽磁力永磁材料磁性能的方法
Test method for d - c magnetic properties of materials using ring and permeameter procedures with d - c electronic hysteresigraphs
使用d - c电子磁滞曲线记录仪响铃和磁导仪程序的材料的d - c磁化特性测试方法