Data for: The influence of energy recovery on the Overall Efficiency of acoustic sources at low frequencies

The uploaded files are related to the experimental data shown in Fig.13b and Fig.14 in the manuscript.
Further measurement data is required to be uploaded. However, due to the size limitation of 10GB in this website, I was unable to upload the entire folder related to the experimental data.

所上传的文件与稿件中图13b和图14所示的实验数据相关。此外，尚需上传进一步的测量数据。然而，由于本网站对文件大小的限制为10GB，我无法上传包含实验数据的整个文件夹。