In the noise simulation sysnoise is applied to get estimable simulation results of aircraft noise close to ground 设计了一种可用于机场无人监测的专用无线噪声测试系统。
For designing railway vehicle with lower noise , interior noise is measured in the cushioned berth sleeping car 为了设计低噪声铁道车辆，对我国既有线上的软席卧车(空调)进行了车内噪声测试。
Acoustics - household and similar electrical appliances - test code for determination of airborne acoustical noise part 1 : general requirements 声学家用电器及类似用途器具噪声测试方法第1部分:通用要求
Develops a new type of swirling cold air diffuser and tests its performance in aspects of aerodynamics , cold air supply and noise 摘要研制了一种旋流式低温送风口，并进行了空气动力学、低温送风及噪声测试。
Acoustics . determination of sound power levels of noise sources . guide lines for the use of basic standards and for the preparation of noise test codes 声学噪声源声功率级的测定-使用基础标准与制订噪声测试规范的准则
Test code for the determination of airborne acoustical noise emitted by household and similar electrical appliances - particular requirements - forced draught convection heaters 家用和类似电器气载噪声测试规程.真空吸尘器专门要求
Based on noise test results of a four - cylinder gasoline engine , this paper establishes the simulation model by using simulation software gt - power 本文针对某四缸汽油发动机噪声测试结果，运用数值仿真软件gt - power进行建模仿真计算。
In this paper the main noise source of sq6450 type light car was judged by means of spectrum and correlation analysis of noise signal . the corresponding proposal reducing noise was presented 对sq6450轻型汽车进行了噪声测试，通过对噪声信号的频谱分析和相干分析，找出了主噪声源，并提出了降噪措施。
Abstract : in this paper the main noise source of sq6450 type light car was judged by means of spectrum and correlation analysis of noise signal . the corresponding proposal reducing noise was presented 文摘:对sq6450轻型汽车进行了噪声测试，通过对噪声信号的频谱分析和相干分析，找出了主噪声源，并提出了降噪措施。
If transmission error testing carry through under high - speed condition and combine with vibration and noise testing , analyze the reason of vibration and noise generation , it will be a new breakthrough of vibration and noise generation 如果能在高速工况下进行传动误差测试，并与振动和噪声测试相结合，分析出传动系统产生振动和噪声的原因，将会对振动和噪声检测带来新的突破。
