By using a concise method, the charge distribution on the surface of a thick spherical conducting shell revolving in a homogeneous magnetic field is obtained.
用简单方法求出了在均匀磁场中旋转的导体厚球壳上电荷的分布,证明了在磁场中转动的导体表面电荷分布无普遍公式。
The results of transmission electron microscopy(TEM) showed that the grain of strontium titanate powder prepared was spherical and the grain sizes distribution were homogeneous.
通过TEM分析可以看出,制备的钛酸锶粉体材料的颗粒为球形,并且颗粒大小均匀。
The results of transmission electron microscopy(TEM) showed that the grain of strontium titanate powder prepared was spherical and the grain sizes distribution were homogeneous.
通过TEM分析可以看出,制备的钛酸锶粉体材料的颗粒为球形,并且颗粒大小均匀。
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