忧伤
发表于 2025-3-25 07:03:42
http://reply.papertrans.cn/27/2684/268342/268342_21.png
Volatile-Oils
发表于 2025-3-25 09:28:03
http://reply.papertrans.cn/27/2684/268342/268342_22.png
inhibit
发表于 2025-3-25 14:57:35
Venture and Development Capital Companiesechnical acoustics and noise control, are shown..Organizational and personal noise protection is often used in practice in noise protection at the workplace. It is usually suitable as a short-term and quick measure and is not the subject of this book.
唠叨
发表于 2025-3-25 16:36:04
http://reply.papertrans.cn/27/2684/268342/268342_24.png
不足的东西
发表于 2025-3-25 21:41:34
http://reply.papertrans.cn/27/2684/268342/268342_25.png
ANTIC
发表于 2025-3-26 03:47:26
http://reply.papertrans.cn/27/2684/268342/268342_26.png
Alopecia-Areata
发表于 2025-3-26 07:54:03
Physical Basics,ndations of the sound field have been dealt with in detail in Engineering Acoustics . In the following, only the essential basics and terms are reproduced, which should help to understand the interrelationships in Chaps. ., ., . and . as they are treated in this book.
DEAWL
发表于 2025-3-26 11:19:13
Measuring Technology,events by suitable measures, preferably constructive ones. The necessary acoustic parameters for this can best be determined by measurements on existing machines or prototypes [.]..In this chapter, we discuss the main possibilities for the experimental determination of sound and vibration parameters
ovation
发表于 2025-3-26 14:40:21
Noise Reduction,an the unpleasant part of the subjective perception of sound events by the human ear..The task of design acoustics is to avoid or reduce the noise generated by machines by suitable measures, preferably design measures ..Depending on the task and the possibilities, various noise reduction measu
原来
发表于 2025-3-26 16:55:40
http://reply.papertrans.cn/27/2684/268342/268342_30.png