multiple reflection echoes

例句：

1. 1.The scientists used a new technique to measure the multiple reflection echoes of the ocean waves.
   科学家们使用一种新的技术来测量海洋波浪的多重反射回声。
2. 2. The sound waves from the distant earthquake were captured by the seismometer and displayed as multiple reflection echoes on the screen.
   远处地震产生的声波被地震仪捕捉并显示在屏幕上作为多重反射回声。
3. 3. The researchers analyzed the data collected during the experiment and found thatthere were multiple reflection echoes in the spectrum.
   研究人员分析了实验中收集的数据，并发现频谱中有多重反射回声。