为了研究声子晶体因缺陷而产生的声波导问题，提出了同质位错缺陷模型。
A homogeneous dislocation defect model was established to study the sonic waveguide of a photonic crystal with defects.
实验结果表明，金刚石晶体中存在有位错、亚结构及包裹体等缺陷。
The results show that there do exist some defects in the diamonds such as dislocation, substructure, inclusion, etc.
用高分辨电子显微镜对铬酸镧的晶体结构及晶界、位错等晶体缺陷进行了观察与分析。
The crystal structure and some defects such as tilt boundary and dislocation of lanthanum chromates were investigated by high resolution microscopy (HERM).
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