科学家称,让关节发出“咔”的一声的力量足以给关节带来损伤。
Scientists say that the force involved in making fingers 'pop' is more than enough to cause damage.
在相同的频率和声压级水平下,次声的损伤作用与次声的暴露时间并非呈线性关系。
Under the same frequency and same sound pressure level, the infrasound damage on the brain didn't show linear correlation with the acting time of infrasound.
考虑到不同损伤存在形式,计算分析了损伤对振动频率、模态以及声辐射特性的影响。
Influences of various types of damages on natural frequencies, vibration modes, acoustic radiation power and directivity of sound are studied.
你可以通过避免过高的音量(比如工作场作的噪音、机械器具、大声的音乐、摩托车引擎声等等)来预防噪声引起的听觉损伤。
You can prevent noise-related hearing loss by avoiding loud noise such as that made by machines in the workplace, power tools, very loud music, and very loud motorcycles.
结论:适当的条件声暴露对噪声引起的耳蜗结构损伤有一定的保护作用。
Conclusions: a suitable sound conditioning can protect the cochlea against intense noise trauma in morphological aspect.
洪明,陈浩然,含分层损伤复合材料层合板声激励下振动特性研究,船舶力学,2004,8(2), 94-100;
Hong Ming, Chen Haoran, Effect of Plane Wave Exciation on Vibration Behavior of Laminated Composite Plate with Delamination, Journal of Ship Mechanics, 2004, 8(2), 94-100.
洪明,陈浩然,含分层损伤复合材料层合板声激励下振动特性研究,船舶力学,2004,8(2), 94-100;
Hong Ming, Chen Haoran, Effect of Plane Wave Exciation on Vibration Behavior of Laminated Composite Plate with Delamination, Journal of Ship Mechanics, 2004, 8(2), 94-100.
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