• 海洋测深过程中,回声测深波束效应使记录测深图像失真

    In bathymetric survey, the record seabed image is distorted due to the angular beam width of an echo sounder.

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  • 回声测深导航仪器中的地位在下降,其原因存在较多误差

    The echo sounder is now gradually out of use in navigation, because it has many errors.

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  • 在海洋测深由于回声测深波束效应影响,海底的测量会带来较大的失真

    The record seabed image distorted due to the angular beam-width of echo-sounder in bathymetric, especially for gibbous terrain.

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  • 起,立即召唤船长开始保持20分钟雷达环扫海面回声测深52车,开启雾号。

    Fog sets in, call master at once. Began to keep on radar for detecting to the sea all round at an interval of every 20 minutes. Sounding by echo 52 fathoms. Standby Engine. Fog signal started.

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  • 本文介绍回声测深基本工作原理同时,介绍了回声测深仪在杭州湾口外拟建大型码头水下地形测量的一个应用实例

    The paper briefs the basic principles of the fathometer and its application to submerged landform measurement near a planned large dock out of the Hangzhou Bay.

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  • 回声测深用来测量水深声学测量设备水中超声波传播速度确定条件,利用发射反射回波时间差测量水深。

    Echo Sounder is a kind of acoustic measuring depth equipment, which can measure depth with the time between transmitted wave and echo on condition in which the speed of ultrasonic is fixed.

    youdao

  • 通过水域时,要常用回声测深

    Use echo sounder frequently when passing shallow water.

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  • 通过水域时,要常用回声测深

    Use echo sounder frequently when passing shallow water.

    youdao

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