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导航声呐
利用水声信号在水下的传播特性,通过测量载体相对于参考物的距离、方位、速度等信息,经过解算从而获得载体的位置、速度等导航参数的水声设备。
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product structure design
product structure tree
product-sum
product-sum form
product surface
product survey
product theorem
product topology
product traceability
product transformation
product-type
product uniformity
product uniform space
product value flow
product variety
product wavefunction
product σ-algebra
pro E
pro-E
proecdysis
Proelium Pontis Milvii
proembryo
proembryonal cell
proembryonal tube
pro-environmental behavior
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