回声测深 (echo sounding)是根据超声波在均匀介质中将匀速直线传播和在不同介质界面上将产生反射的原理,选择对水的穿透能力最佳、频率在1500赫兹附近的超...
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... acoustic sounder 回声测深仪 acoustic sounding 回声测深 acoustic spectrograph 声谱仪 ...
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... acoustical damper 消声器 acoustical depth sounding 回声测深 acoustical detector 声波探测器 ...
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... echo-sounding instrument 回声测深仪 echo depth sounding 回声测深 ; 回音测深 echo-sounding receiver 回声测深接收机 ...
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回声测深器 [测] echo sounder ; sonic echo sounder ; sonic echo depth finder
数码回声测深仪 digital echo sounder
超音波回声测深仪 supersonic echo sounder
自记回声测深仪 recording echo sounder
回声测深机 echo sounding machine ; machine ; echo sounding
数字式回声测深仪 digital survey fathometer
示像回声测深仪 videograph echo sounder
磁致伸缩回声测深器 magneto striction echo sounder
海洋回声测深仪 marine depth sounder
这时,使用回声测深法将遇到困难。
In that case, it is difficult to apply the acoustic well-sounding(AWS)method.
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。
In bathymetric survey, the record seabed image is distorted due to the angular beam width of an echo sounder.
回声测深仪在导航仪器中的地位在下降,其原因是它存在着较多的误差。
The echo sounder is now gradually out of use in navigation, because it has many errors.
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