查询词典 echo

It will introduce the theory, current status and hardware of echo depth sounder and GPS. Also introduce the control flow of system, how to control the system errors, program rules of software, design of monitoring interface and the application in actual measuring process and advantage.

本文详细介绍了回声测深仪和GPS的工作原理、发展现状以及本系统采用的硬件类型；还介绍了整个系统的控制流程、系统误差的控制、软件开发工具Delphi的编程规则、监控界面的设计；最后还详细介绍了系统在实际测量过程中的应用以及其优越性。

Based on the instrument of H/HCS-017 Multi-Beam Echo Sounder developed independently by us,this dissertation studied aspects of different kinds of techniques related to multi-beam surveying.

本文在我国独立开发的 H/HCS-017 型条带测深仪产品的技术基础上，对有关的多波束测深技术进行了研究。

Based on the instrument of H/HCS-017 MultiBeam Echo Sounder developed independently by us, this dissertation studied aspects of different kinds of techniques related to multi-beam surveying.

本文在我国独立开发的H/HCS-017型条带测深仪产品的技术基础上，对有关的多波束测深技术进行了研究。

And the Multi-Beam Echo Sounder is a seafloor mapping equipment with high efficiency, high accuracy and excellent resolution, especially fitted for wide sweep mapping.

多波束条带测深仪是高精度、高效率、高分辨率的海底地形测绘仪器，并适合大面积的扫海测量作业。

According to the features and requirements of long-distance crossing project, this paper studies the process of GPS-RTK and Echo Sounder in underwater topography surveying and profile surveying. At meantime, it analyzes the accuracy effecting factors and the relating methods to deal with them in the application of Yellow River crossing project.

在长输管线的穿跨越工程中，结合穿跨越工程的工艺原理和资料要求，对GPS-RTK技术联合测深仪进行水下地形测量和断面测量的基本作业程序进行了总结，结合黄河穿越工程对影响测量精度的因素进行了分析及处理。

Learning Vector Quantization; Genetic Algorithm; Multibeam echo sounder ; Seafloor classification

学习向量量化；遗传算法；多波束测深系统；底质分类

Use echo sounder frequently when passing shallow water.

通过浅水域时，要常用回声仪测深。

Photo caption: 18 hours of data from an upward- Looking echo sounder moored 1,000 m deep near the Mid-Atlantic Ridge showing plankton and fish in light blue rising about 9 pm and descending about 6 am.

照片标题：固定在中大西洋海脊附近1000米深处回声音响器的18小时的数据显示浮游生物和鱼类在下午9点上升，上午6点下降

Using the world's first long-term, full ocean-depth echo sounder, the scientists observed a daily vertical commute of up to 400 m between the twilight or mesopelagic zone, about 500 m down, and the surface layer, where sunlight and photosynthesis prepared food.

利用世界上第一个长期的、全海洋深度的回声音响器，科学家们发现动物们在海洋中层500米之下到表层之间有一个每天的向上400米的垂直区间运动，在这个区域通过光照和光合作用产生食物。

Inspection installation and water tightness transducer of echo sounder on berth.

测深仪换能器舟台安装和水密性检查。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。