low noise tube 低噪声管
tube noise [电子] 电子管噪声
small noise tube [电子] 低噪声电子管
low w noise tube 低噪声管
noise discharge tube 噪声放电管
discharge tube noise generator 放电管噪声发生器
noise suppression control tube 静噪控制管
vacuum-tube noise 真空管噪声
noise-rejected tube 噪声抑制管
Aimed at the jet noise which is induced by the expand structure and tail tube in the resistant muffler, a finite element model at low Mach number was developed.
针对抗性消声器中扩张结构和尾管引起的射流噪声问题，建立了低马赫数射流噪声有限元分析模型。
We illustrate the importance of noise reduction of underwater weapon launch tube, and summarize the classification of underwater launch tube and the main sources of launching noise.
阐明了潜用武器发射装置发射噪声控制研究的重要意义，归纳了潜用武器发射装置的分类以及武器发射噪声的主要来源。
It can be effectively separate the noise and vibration as its have some space at the end of the tube, the pipeline is not affected when thermal expansion or contraction.
因管末端有间隙可有效地隔断噪音及振动地传播，热胀冷缩时管路亦不受影响；
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