clap-echo method

例句：

1. 1.The clapp-echo method is a useful tool for analyzing the structure of complex systems.
   拍手回声法是一种分析复杂系统结构的有用工具。
2. 2. In this study, we used the clapp-echo method to measure the sound speed in different environments.
   在这项研究中，我们使用拍手回声法测量了不同环境中的声音速度。
3. 3. The clapp-echo method was first introduced by Dr. Smith in his book "The Art of Learning".
   拍手回声法最初由史密斯博士在他的书《学习的艺术》中介绍。