The magnetic properties of magnetic material are mainly determined by its domain structure and the way it changes, so the observation of magnetic domain is always a very important subject.
磁性材料的宏观磁性能主要是由磁畴结构及其运动变化方式所决定，因此磁畴图像的观测是一个很重要的研究课题。
Section 2 discusses dramatic changes in material properties that occur with the reduction of grain sizes to nanoscale proportions.
第二部分讨论了在颗粒尺寸小至纳米尺度时，材料的属性发生的戏剧性的变化。
Results: Mechanical changes of various parts of the model in different working conditions could be simulated by means of adding different material properties and boundary conditions.
结果：获得良好的下颌骨三维有限元模型，并可模拟不同工作状况模型各部分的力学改变。
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