粗骨料与硬化水泥浆体界面骨－浆界面
interface between coarse aggregate and hardened ce
水声测位仪
Blue grain monosomic wheat
水声测向仪
hydroacoustic bearing indicator
水声差分跳频通信
underwater acoustic DFH communication
水声场
underwater acoustic energy field
水声导航
underwater acoustic navigation
水声测量仪
underwater acoustic measuring instrument
水声对讲机
hydrophone intercommunicator
水声对抗仿真
underwater acoustic warfare simulation
水声对抗器材
acoustic countermeasure device
水声对抗系统
underwater acoustic countermeasure system