... 消声装置 noise-abatement equipment ; muffler device 消声罩 sound proof housing 管道消声 duct attenuation ...
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我做的消声器外罩分析 DYNAFORM
利用阻抗消声原理为气动凿岩机设计了一种新型的消声罩。
This paper designed a new type of muffler for pneumatic rock drill with the theory of impedance.
在标准半消声室，用B&K3560噪声测量分析系统对4110Q柴油机整机和油底壳、飞轮壳、喷油泵、摇臂罩等零部件的噪声进行了台架试验研究。
The noise of 4110Q diesel engine and its oil pan, flywheel cover, oil pump, valve chamber has been studied by the analysis system of B&K3560 in the normal Semi-anechoic chamber.
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