Effect of Cleaning Acoustic Duct with Iodophor
碘伏清洗外耳道的效果观察
Sea surface and bottom constituted sound propagation environment of the neritic acoustic duct field.
海面与海底构成了声源浅海海域波导场的声传播环境。
The twomicrophone method is investigated for the objective of in situ measuring the impedance of an acoustic liner in a duct.
对现场测量管道声衬声阻抗的双传声器法进行了研究。
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