sonar= sound navigation and ranging,声纳，声导航和测距(法)详细»
sonar声呐[ 利用水声学原理，把在水中传播的声波进行电声转换、信息处理来完成水]详细»
声纳acoustic admittance;acoustic susceptance;acoustical admittance;asdic;asdic gear;sonar;sound navigation and ranging详细»
声纳acoustic susceptance;sonar;sound navigation and ranging详细»
声纳echo sounding instrument;sound navigation and ranging;sound operation navigation and range详细»
声纳acoustic admittance;asdic;hydrolocator;sonar;sound gear详细»