The cross section of the composite crystal was observed by optical microscope and scanning electron microscope ( SEM), the stress in bonding area was observed by micropolariscope; 在偏光显微镜下观察键合区域的应力,利用干涉条纹来表征复合晶体的光学均匀性;
The microstructural study of salivary calculi under the micropolariscope 偏光显微镜下涎石结构的研究