The surface micrographs of the poled samples and the electro-optic coefficient measurement results show that the corona poling technique with grid has better performance than the one without grid.
实验结果显示，栅极偏置电晕放电极化系统的电光聚合物极化效果较无栅极时好得多。
Many round voids which result in stress concentration easily are found on SEM micrographs of fracture surface after heat-treatment, so the notched izod impact strength of the sample decreases.
由热处理后试样冲击断面的SEM照片可见水分挥发留下的空洞，这些空洞容易形成应力集中点，因而导致冲击韧性降低。
The SEM micrographs show the surface of three samples are optically similar.
扫描电镜(sem)的显微照相则显示三种样品表面是光学相似的。
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