sonic depth finder 回声测深仪 ; 声深度观察装置 ; 音响测深器 ; 超声波测深仪
sonic depth-finding instrument 声波测深仪
sonic depth signal 回声测深信号
sonic depth recorder 回声测深记录仪
sonic depth finder WESTBANK 音响测深器
ultra-sonic depth finder 超声波测深仪
sonic depth sounder 音波深度音响机
ultra sonic depth finder 超声波测深仪
sonic echo depth finder 回声测深器 ; 回声测深仪 ; 回声探测仪
With help of a sonic depth-finder a proper shoal gets detected and the fishermen prepare special devices which look something like spinnings and attached to the handrails.
用超声波探测器可以定位鱼群，渔民们准备一种特别的装置：看起来象连着扶手的陀螺。
Based on acoustics, one can study the testing depth of sonic logging.
从波动声学的角度讨论声波测井的探测深度问题。
This system consists of sonic sonde, magnetic locator sub, gamma ray tool, depth system, surface preprocessing unit, data acquisition interface, PC486 and thermal plotter.
该系统由声波、磁定位和自然伽马下井仪、深度系统、地面预处理电路、数据采集控制接口电路、486微机和热敏绘图仪等构成。
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