1.
Break the sound barrier, ie move faster than the speed of sound
突破声障（即以超声速飞行）
2.
sonic barrier
【空】声垒, 音障
3.
Research on the Acoustic Characteristics and Acoustic Considerations of Noise-barrier;
道路声屏障声学特性与声学设计研究
4.
barrier correction
屏障的隔声修正数值
5.
correction for the effect of barrier
屏障的隔声修正系数
6.
If equipped, install sound bar.
如果配备，安装声音屏障。
7.
Acoustic Performance Analysis and Structure Desigh of Noise Barrier;
声屏障的声学性能分析及其结构设计
8.
Research on Acoustical and Landscape Design of High-speed Railway Noise Barriers
高速铁路声屏障声学与景观设计研究
9.
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
10.
Examples of Urban road noise Barrier effects And Full-closed barrier's outlook
城市道路声屏障实例及全封闭屏障的展望
11.
a child without problems in language development can hear two tones,
一个没有语言发展障碍的孩子听到的两声声响，
12.
The Extra Insertion Loss of Active Noise Barrier with Multiple-frequency Components;
有源声屏障对宽频带白噪声的新增插入损失
13.
The Model Experiment and Acoustic Characteristic Study on Noise Barrier;
降噪声屏障的模型试验和声学特性研究
14.
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
15.
Discussion on Feasibility of Nonwoven Sound-absorbing Materials Used for Road Noise-deafening Barrier
道路声屏障用非织造布吸声材料的可行性研究
16.
noise barrier reserve
预留作为设置隔声屏障的土地
17.
REPAIRING NOISE OR DISTORTION FROM ONE SPEAKER
维修噪音或一个扬声器的断开故障
18.
profiled concrete barrier
有图案的混凝土隔声屏障