Noise Abatement of Main Fan For Mine Use
矿井主扇风机的噪声控制
New structure design and noise abatement of the roots blower
罗茨鼓风机创新结构设计及噪声治理
Do you have any noise abatement earplug, that is, the kind of sleep wear.
请问你有没有防噪音的耳塞，就是睡觉戴着的那种。
Basic Configurations of Reactive Muffler and Its Noise Abatement Calculation
抗性消声器的基本组成结构及消声性能计算
APPLICATION OF RUBBER DAMPENING PAD IN NOISE ABATEMENT OF BALL GRINDING MILL
橡胶减振垫在球磨机降噪中的应用
Noise from industrial or commercial activities is controlled by means of Noise Abatement Notices.
环保署透过消减噪音通知书，管制工商业活动的噪音。
Confirmation of the Equivalent Frequency in Designing the Noise Abatement of Passenger Dedicated Lines
客运专线声屏障设计中等效频率的确定
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