深海大洋，犹如浩渺宇宙，永远是神奇的远方美景！

　　祝愿好奇诸君能够走进深蓝！BELLHOP 3D 是一扇小小的窗！

　　在此感谢包（青华）老师、林（俊轩）老师、惠（俊英）老师的指导，也感谢吴老师、张老师的提醒！尤其感谢Michael B. Porter 对 BELLHOP 3D近40年孜孜不倦的探索！感谢国际科学社区对三维海洋传播声学永远的支持！更感谢由 Free Software 凝聚起来的全球自由科学家社区！(The deep ocean, like the vast universe, is always a magical distant beauty!



I wish you all the curious gentlemen can go into the dark blue! uuuuuuuuuuu BELLHOP 3D is a small window!



Thank you, Mr. Bao (Qinghua), Mr. Lin (Junxuan), Mr. Hui (Junying), for your guidance. Thank you, Mr. Wu and Mr. Zhang for their reminders. In particular, thanks to Michael B. Porter for his tireless exploration of BELLHOP 3D for nearly 40 years! Thank you for the support of the international scientific community for the three-dimensional ocean propagation acoustics forever! Thank you even more for the Free Software community of free scientists around the globe!)