1.
Study on Acoustic Properties of Nitrile Rubber-based Composite Materials
丁腈橡胶复合材料吸声降噪性能的研究
2.
Noise Reduction for Sound Barrier in Railway Passenger Dedicated Lines
铁路客运专线吸声式声屏障降噪研究
3.
Analysis of Noise Reduction Efficiencies of Straight-type and Incline-type Absorbing Sound Barriers Along Railway
铁路直立型与内倾型吸声声屏障降噪效果分析
4.
Assessment of the Effects on noise Reduction for Cement-based Noise-absorbing Material on Ballastless Track
无砟轨道用水泥基吸声板降噪效果评价
5.
Experiment Study of Noise Reduction with Sound-Absorption Volute for Forward-Swept Centrifugal Fan
前向离心风机吸声蜗壳降噪的试验研究
6.
Water collector: The noise-absorbing cushion specially made for water collector substantially reduces the noise in water pouring.
积水盘：积水盘上加装特制的的吸声垫，大幅度降低了淋水噪声。
7.
Study on Sound Absorption and Structural Style to the Noise Reduction of Noise Barrier;
声屏障的吸声作用及结构形式对降噪量影响的研究
8.
EXPERIMENTAL STUDY ON SOUND ABSORPTION CHARACTERISTICS OF POROUS CRUMB RUBBER MODIFIED ASPHALT PAVEMENT
多孔橡胶粉改性沥青降噪路面材料吸声特性试验研究
9.
Pass-by Noise Analysis and Decline Noise Measure of BJ6112 City Bus;
BJ6112型客车车外噪声分析及降噪措施
10.
The Origin of Noises from Vehicle Transmissions and the Measures how to Lower Them
汽车变速器总成的噪声源及降噪措施
11.
Low Noise Design and Noise Reduction Research of JS6128H Coach Inside
JS6128H型客车车内低噪声设计与降噪研究
12.
Countermeasures of Noise Reduction for Shinkansen Electric-Current Collecting System and Lower Parts of Cars
降低新干线集电系统噪声和车辆下部噪声对策
13.
Research on Suppression of the Atmospheric Noise and Environmental Noise in the Signal of the Laser Listening System;
激光侦听信号中大气噪声与环境噪声的降噪研究
14.
According to the function mechanisms, polymeric noise reduction composites were classified as vibration damping, sound absorption and sound insulation materials.
降噪材料按降噪机理可分为阻尼减振材料、声材料和隔声材料。
15.
After the projects put into effect, the noise absolute value reduced by 20 decibels, and the noise rang decreased by 24%
项目实施后,噪声绝对值降低了20分贝,噪声幅度降低达24％。
16.
Noise Measurement and Reduction of Motorcycle Abroad
世界各国摩托车的噪声测试方法及降噪措施(1)
17.
It is resultful to apply the sound attenuated enclosure to controlling undesired sound.
静音箱在噪声控制中有良好的降噪效果。
18.
The Parameter Optimization and the Resisting Noise Analysis of the Rail Noise Controller;
钢轨噪声控制器的参数优化和降噪效果分析