... strength of materials ==> 材料力学,材料强度学 strength of sound source ==> 声源强度 strength of structure ==> 结构力学,结构强度 ...
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strength of a sound source 声源强度
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When we use it to test the underwater target strength, one problem is how to discriminate the direct sound of the source with the echo reflected from the target, finding the target character quickly.
当利用它进行水下目标强度测试时，一个很实际的问题就是怎样区分声源直达声和目标反射回声，快速找出目标特性。
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