a system in which the sound waves from an underwater explosion are detected and located by three or more listening stations, useful in determining the position at sea of survivors of a disaster
声发(一种声定位测距法)。
"1940s: from
网盟英语在线翻译词典收录了36528条英语词汇在线翻译词条,基本涵盖了全部常用英语词汇的中英文双语翻译及用法,是英语学习的有利工具。