裤子
发表于 2025-3-26 21:21:57
singly important in our ever noisier world.‘ J.A.S.Angus, Times Higher Education Supplement An understanding of acoustics and noise control is of increasing importance to the professional engineer. This book describes the basic theory of sound together with its application and measurement, theory wh
气候
发表于 2025-3-27 02:18:29
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离开
发表于 2025-3-27 09:13:04
Aufgaben zum Skriptum Informatik or stress change to an electrical form. Once we have made an electrical analogue of the sound wave we can apply the analysis techniques described in this chapter to the signal. The same applies to vibration signals which require analysis.
侵略主义
发表于 2025-3-27 10:07:32
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高谈阔论
发表于 2025-3-27 16:14:49
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止痛药
发表于 2025-3-27 18:18:57
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闯入
发表于 2025-3-27 23:08:38
ich is illustrated throughout with the use of numerous examples. Other key subjects such as noise control are covered, together with more advanced topics not usually covered in acoustics texts, such as modern noise measurement equipment, digital methods of spectrum analysis, and systematic strategies of noise control.
杀菌剂
发表于 2025-3-28 02:19:16
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bronchodilator
发表于 2025-3-28 07:11:39
9楼
Microgram
发表于 2025-3-28 10:49:13
9楼