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- Study of Diesel Engine Noise Source Identification 柴油机噪声源的识别研究
- Engine Noise Source Identification with Different Methods 用不同方法进行发动机噪声源识别的研究
- Application of virtual sound intensity analysis system in engine noise source identification 虚拟式声强分析系统在发动机噪声源识别中的应用
- W is a zero mean white noise source. W是一个零均值的白噪声源。
- Engine Noise Source 发动机噪声源
- Use of shield for return current to noise source. 用屏蔽体作为负载电流的返回路径。
- You may also notice an increase in engine noise after landing. 飞机着陆后发动机噪音也会加大。
- The silencer is supposed to silence the engine noise. 据说消音器是用来消除引擎的噪声的。
- This is avoidable by arranging the barriers to encircle the noise source. 要避免上述情况出现，可安排以屏障围绕噪音源头。
- Accelerating noise was measured and analyzed for a passenger car, the inlet air noise of its engine has been found to be the main noise source during the car accelerating period. 运用该技术对某汽车的加速噪声进行测量和分析，发现发动机进气噪声是该车主要的加速噪声源。
- The EMI noise source impedance of an SMPS is essential in EMC design. 开关电源的电磁干扰噪声源阻抗在电磁兼容性设计中是个非常重要的参数。
- A copy of engine noise compliance letter from Environmental Protection Department. 由环境保护署发出的引擎噪音及格证明书副本乙份。
- Some coarse engine noise did leak through under acceleration, though - more than some buyers would expect in a Lexus. 一些粗糙的发动机噪音也泄漏下加速通过，但-超过部分买家希望在雷克萨斯。
- This paper presents the acoustical holography method which can be used to identify noise source on a moving vehicle. 本文提出利用声全息原理,对运动状态下的汽车噪声源进行识别的方法。
- The application is required to be supported by an engine noise test report and an engine emission test report issued by an approved laboratory. 车主必须取得由认可实验室发出的引擎噪音测试报告及引擎排放测试报告,以支持其申请。
- Quadrupole source (30) A noise source in which four parts vibrate alternately in phase. 四極聲源(30)一種分成四部份而相位交替振動的噪音源。
- This article illustrate the acoustic character of this noise source, according to the observation and test cont... 本文通过对昆明东站铁路降噪工程的观测试验项目,探讨了减速顶噪声的特性及治理措施。
- Secondly, to the nonstationarity of diesel engine noise, this paper focuses on the extraction of time frequency feature using wavelet scalogram. 其次针对噪声信号的非平稳性，研究基于小波尺度谱噪声分量的时频特征分析。
- The method of noise source identification and location based on Wave Superposition Method(WSM) is proposed. 提出了基于波叠加的噪声源识别和定位方法。
- Hydraulic impact which engender between proportional valve and hydraulic cylinder is important noise source. 操舵系统中,比例阀前的液压冲击是重要噪声源。
