Micromorphology and fine structure in laser hardened layer of grey cast iron have been investigated with scanning electron microscope and high-voltage transmission electron microscope.

用扫描和高压透射电子显微镜研究了灰铸铁激光硬化层微区组织形貌和精细结构。

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Subsequently, the breakdown happened inside of the high-voltage vacuum apparatus was researched initially by means of scanning electron microscope analysis and vacuum apparatus dissection.

采用高压真空器件解剖、扫描电镜分析和高压脉冲耐压试验分析了高压真空器件内的真空击穿、陶瓷击穿。

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