- parametric depth sounder
- 参数: parameter
- 测: survey; fathom; measure
- 深: deep
- 仪: appearance; bearing
- 测深仪: bathometer; bathymeter; deep sounding apparatus; deep-sounding apparatus; depth finder; depth measurement meter; depth measuring instrument; depth recorder; depth sounder; depth sounding machine; depthfinder; depthometer; dr; echo sounder; echometer; fathmeter; fathometer; lotlin; sounding gauge; sounding-machine
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