Comrade Ma Yuanligang, an academic of the Chinese Academy of Engineering, an outstanding scientist and educator in the field of water acoustic engineering, science and water weapons information in my country, a pioneer and founder of the field of Aeronautics Sonar, and a professor and supervisor of the school doctor of the nortwestern Polytechnical University school, on XI 11, 2025 at the age of 87. Have a great journey!资料来源：太阳日-TO日回到Sohu以查看更多 平台语句：本文的观点仅代表-set本身。 Sohu帐户是发布信息的平台。 SOHU仅提供存储信息服务。