narrow-beam sounder 窄束测深仪
narrow beam echo sounder 窄束回声测深仪
multi-beam echo-sounder 多束测深仪
Portable Multi-Beam Echo Sounder 便携式多波束测深仪
Multi-beam echo sounder 多音束测深系统
multiple-beam echo sounder 多射束回音测深仪
beam echo sounder 多音束测深系统
multi beam echo sounder 多波束回声测深仪
Single-beam Echo Sounder 单音束测深系统
multi-narrow-beam echo sounder 多窗梁反射发声器
In bathymetric survey, the record seabed image is distorted due to the angular beam width of an echo sounder.
在海洋测深过程中，回声测深仪波束角效应使记录的测深图像失真。
The record seabed image distorted due to the angular beam-width of echo-sounder in bathymetric, especially for gibbous terrain.
在海洋测深中，由于回声测深仪波束角效应的影响，对凸形海底的测量会带来较大的失真。
Multi-Beam Echo Sounder is an absolutely necessary seafloor mapping device with high accuracy and high efficient at 21st century. It is much fitted to sweep mapping for wide area.
多波束测深仪是高精度、高效率的地形测绘设备，适合大面积的扫海测量作业，是21世纪水下地形测量必不可少的测绘仪器。
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