“齿轮噪声”通常指齿轮装置的噪声,是一种机械噪声。什么是噪声?噪声是不需要的、不希望的或者说不受欢迎的声的总称。按其含义,一般有1.过响声,2.妨碍声,3.不愉快声,4.可忽视声。关于可忽规声,例如我们生活中已融洽而又习惯了的声音,多数是可忽视的,但它毕竟是噪声。还有一些特例,象摩托车疾驰的声音,对周围的人可能是很不愉快的声音,但对骑车人而言是非常惬意的声音。与此类似,国外有所谓“钢琴公害”之说。 “Gear noise” usually refers to the gear noise, is a mechanical noise. What is noise? Noise is a general term for unwanted, unwanted, or unwanted sounds. According to its meaning, generally 1. too loud noise, 2. obstruct the sound, 3. unpleasant sound, 4. can ignore the sound. About negligible sounds, such as those voices that we have been accustomed to and accustomed to in our lives, are mostly negligible, but after all, they are noises. There are some special cases, like motorcycle galloping sound, the surrounding people may be very unpleasant sound, but for the rider is a very pleasant voice. Similarly, foreign so-called “piano nuisance” said.