acoustic spectrometer
... acoustic sounder 声波测深器 acoustic spectrometer 声频谱计 acoustic spectroscope 声谱仪 ...
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为利用观察点处实测声频谱来预估实际声源自由场频谱特性,必须适当地计及地面反射和衰减效应的影响。
The ground reflection and attenuation must be properly accounted for in order to use the source spectrum measured at the site of the observer to predict the actual source spectrum in the free field.
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