rating of sound level的意思|示意
美 / ˈreitiŋ ɔv saund ˈlevl /
英 / ˈretɪŋ ʌv saʊnd ˈlɛvəl /
声级评定
rating of sound level相关例句
The size and the sound reduction performance of the sound-proof door can be customized according to the sound insulation level, installation room and fire rating.
隔声门大小和隔声性能可按隔声等级要求、安装空间、防火等级选定。