物理学专门研究力、运动、热、光、声、电、磁、辐射和原子结构。
Physics studies force, motion, heat, light, sound, electricity, magnetism, radiation, and atomic structure.
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。
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。
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.
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