水声工具箱中BELLHOP使用指南中文版，内有详细使用说明及应用。-Hydroacoustic toolbox BELLHOP Guide Chinese version, which has detailed instructions for use and application.

本程序基于射线声学bellhop工具包，用于计算不同环境条件下声场的传播损失。(The program is based on the bellhop toolkit of ray acoustics and is used to calculate the propagation loss of sound field under different environmental conditions.)