1.
Acoustics--Determination of sound power levels of noise sources--Precision methods for anechoic and semi-anechoic rooms
GB/T6882-1986声学噪声源声功率级的测定消声室和半消声室精密法
2.
Research on Attenuation Performance of a Semi-Active Exhaust Muffler Based on CFD
基于CFD的半主动排气消声器消声性能研究
3.
The Application Research of Expanding Room Muffler in Toilet Noise Control;
扩张室消声器在座便器噪声控制中的应用研究
4.
Elimination of Sound Feedback on Loud-speaking System in Multimedia Integration Classroom;
多媒体综合教室扩声系统中声反馈啸叫的消除
5.
Measurement & Analysis of Typical Cockpit Background Sound in Anechoic Room
典型舱音背景声在消声室中测试分析研究
6.
He walked halfway up the stairs.The door to the small sitting room was open a crack, and he heard Mrs. Lu talking inside in a loud voice.
他走到半楼，小客室门罅开，有陆太太高声说话。
7.
Acoustics--Measurement of insertion loss of ducted silencers without flow--Laboratory survey method
GB/T16405-1996声学管道消声器无气流状态下插入损失测量实验室简易法
8.
The Dead Room: This has major padding on the walls and ceiling, with a carpet floor.
消声室：它有非常专业的填充物在墙壁和天花板上，还有地毯。
9.
Another approach is to use more effective sound-deadening insulation arround the engine compartment.
另一个办法是在发动机室的周围采用高效消声隔音材料。
10.
this first sound, or rather this first grinding, was followed by a second, then a third;
当最后一下钟声消逝的时候，伯爵好象觉得听到更衣室那方面发出一下轻微的响声。
11.
This article analyses the causes of producing sound feedback in multimedia integration classroom and the common methods of eliminating it.
分析了多媒体综合教室的声反馈啸叫问题的成因和常规消除声反馈啸叫的方法。
12.
Experimental Study on Ultrasonography for Detecting Ventricular Myocardial Ablation with High-intensity Focused Ultrasound;
超声技术检测心室异位兴奋及高强度聚焦超声选择性消融心肌的实验研究
13.
noise-killing battery
消杂音电池，消噪声电池
14.
sound attenuation
消声器（噪声衰减装置）
15.
This method broadens the silence frequency bandwidth of muffler and improves its silence fuction.
这种方法拓宽了消声器的消声频带宽度,改善了消声器的消声性能。
16.
You can change it into a dead room by adding foam, packing blankets, or commercial frequency absorbers.
你可以通过增加泡沫海棉，添加毛毯或者频率吸音的产品把它变成消声室。
17.
Helps eliminate stage rumble or other low-frequency room noise such as that coming from heating, ventilation, or cooling( HVAC) systems.
有助于消除舞台上的嗡嗡声或其它来自暖通空调（VAC）统的低频室内噪音。
18.
Adaptive echo cancellation and noise reduction algorithm
一种自适应回声抵消和噪声消除算法