The microstructure of 30-layered laser cladded coating was displayed. It had uniform microstructure and hardness. Several examples of its industrial application were also carried out.

展示了30层连续熔敷后的组织形貌，说明组织和硬度都比较均匀，并介绍了若干激光修复工业应用实例。

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Based on the layered phase grating and revolving field discrimination, a laser Doppler vibrometer system has been studied which provides a potential method of velocity measurement.

本文借助于层栅理论和琼斯矢量综述其机理方面的理论与实验研究工作，并举例说明基于旋转场辨向各种测试手段中信号叠加方案的一般分析方法。

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