降噪等级
noise reduction───噪声降低; 消音; 减噪; 减声;[环境][电子]噪声降低,噪声消减
rating───n.等级;等级评定;额定功率;v.对…评价(rate的ing形式);n.(Rating)人名;(德)拉廷
reduction───n.减少;下降;缩小;还原反应
noise───n.(Noise)人名;(英)诺伊斯;vt.谣传;vi.发出声音;大声议论;n.[环境]噪音;响声;杂音
my rating───我的评价
pollution reduction───污染减轻;污染减少
flammability rating───易燃性等级
oxidation reduction───氧化还原作用
balsamic reduction───浓缩意大利醋
Besides well known rating methods, a new one is proposed which may be taken to rate either sound insulation of a partition or noise reduction in the room.───文中综合了现有单值评价方法的优点,提出能使构件隔声与室内噪声取得协调的评价方法。
decibels. Made of soft hypoallergenic silicone.───由柔软而低应变原的硅树脂制成。