LH941
发表于 2025-3-21 20:05:31
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过度
发表于 2025-3-21 20:23:24
Structure-Borne-Sound,e many sound signals are generated or transmitted in structures before they are radiated into the surrounding medium. In several respects sound waves in structures and sound waves in gases or liquids are similar, there are, however, also fundamental differences, which are due to the fact that solids
CRAMP
发表于 2025-3-22 01:00:47
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cushion
发表于 2025-3-22 07:44:08
Noise Generation and Control in Mechanical Engineering978-3-7091-2894-7Series ISSN 0254-1971 Series E-ISSN 2309-3706
apiary
发表于 2025-3-22 09:00:51
0254-1971 Overview: 978-3-211-81710-0978-3-7091-2894-7Series ISSN 0254-1971 Series E-ISSN 2309-3706
大范围流行
发表于 2025-3-22 14:45:13
CISM International Centre for Mechanical Scienceshttp://image.papertrans.cn/n/image/666773.jpg
ACME
发表于 2025-3-22 18:42:26
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缺陷
发表于 2025-3-22 22:31:12
Sound, Vibration and Shock I,When converting the wave motion of sound and vibration into a measurable quantity for the purpose of analysis, it is necessary to use combinations of several instruments which together make up the overall measurement system. A typical layout of possible combinations is shown in figure 1.
congenial
发表于 2025-3-23 02:50:14
Flow Noise,Many noise sources that represent a major environmental noise nuisance, or a hazard to health in industry, are of aerodynamic origin. That is, they are associated with relatively high speed flows. One can classify such sources by the manner in which they radiate noise to the acoustic far field. (see A1.2)
破译
发表于 2025-3-23 07:16:35
Noise Generation and Control in Mechanical Engineering