采用消声装置，使噪音减少。
消声器是压缩机噪声控制中常用的消声装置。
Muffler is the conventional muffling device in the noise control of compressor.
特殊设计的专用降噪消声装置的采用，极大的抑制了机械噪声。
A device used underwater to produce pulses of sound, as for an echo sounder.
本发明的目的是提供一种强度高、刚性好并且重量轻、价格便宜的车用消声装置。
The aim of this invention is to provide a deafener for vehicle with high strength, fine rigidity, light weight, and low price.
阐述了冲气噪声的产生机理和消声装置结构、消声原理及消声效果，该装置已被广泛采用。
The mechanism of clash noise production, the structure of a noise silencer, the principles and the results of noise elimination are elucidated. This installation has been widely used.
法兰部件，消声器，管端闭锁或联结装置及其形成方法和装置。
Flange member, noice silencer, tube end closure or connection device, and forming method and device.
该装置由电子微量天平、消声水槽和反射靶悬吊系统组成。
It consists of an electronic ultramicrobalance, an anechoic tank and a system of reflecting target.
实验结果表明，该装置回收排气余热量大，和原消声器相比，排气阻力较小，降噪效果明显。
The test results show that it can recover much more exhaust heat, and less exhaust resistance and lower noise than the original one.
管材采用了具有消声功能的螺旋UPVC排水管，地下室内泵房地面及车库均设有集水坑和废水提升装置。
Pipe with a silencer function by a spiral UPVC pipes, basement floors and garage are equipped with pumping station sump and waste water lifting devices.
吸声装置(22)具有多个在其取决于频率的消声性能方面相互不同的吸收区(24)。
The sound absorbing device (22) is provided with a plurality of mutually different absorption areas (24) on the aspect of depending on the muffling performance of the frequency.
在半消声室中应用这套实验装置对声源进行了定向研究，并探讨了各种误差因素与定向精度的关系。
The bearing experiment of sound source is done with the set of experiment device in semianechoic room, the relation between bearing precision and all kinds of error factor is discussed.
可根据所需的质量和进行按摩的鞋材来调节按摩装置的旋转速度采用消声材料，在按摩过程中噪音非常小。
Hammering device speed rotation adjustable according to the quality requirement and material to be processed. Very low noise level thanks to soundproof material cabin.
可根据所需的质量和进行按摩的鞋材来调节按摩装置的旋转速度采用消声材料，在按摩过程中噪音非常小。
Hammering device speed rotation adjustable according to the quality requirement and material to be processed. Very low noise level thanks to soundproof material cabin.
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