在噪声控制中,声源本身噪声的降低和控制是关键的治理措施,也是积极的措施,常常效果十分明显而且也很经济.更重要的是,它还促进了产品质量的提高和产品的更新.为了能引导和促使产品设计生产者重视并加快这方面的工作,制订科学合理的产品噪声考核标准和相应的测试方法,就成了解决产品噪声的首 In the noise control, the noise reduction and control of the sound source itself are the key measures and also the positive measures, which are often very obvious and economical, and more importantly, it promotes the improvement of product quality and product updating In order to guide and encourage product design producers to attach importance to and speed up work in this area, formulating scientific and reasonable product noise assessment standards and corresponding test methods has become the first solution to product noise