对常规原型观测的方法和技术进行了评述，指出高速水流特性原型观测存在的一些难点与不足，提出用新的涂层痕迹法进行高速水流水力特性原型观测的基本原理和技术方法，并结合室内试验研究和在工程中的初步应用，论述了这种方法技术的可行性。同时还探讨了该方法技术进一步研究的内容和技术路线，展望了应用前景。

By reviewing the methods and techniques of conventional prototype observation, this paper pointed out that difficulties and shortcomings exist in the prototype observation of high  speed flow characteristics. The basic principles and techniques of new coating trace method were proposed to solve these problems in the prototype observation, and the technical feasibility of this method was expounded based on laboratory experiment and preliminary application in engineering. Finally, the paper probed into the content and the technology way for further study, and looked into its application prospect.