surface noise

1. Surface noise The needle moves along the groove on a record.
   （唱片上的）音纹杂音唱针沿着唱片表面的细纹移动。
2. Study on the Surface Noise Prediction for Aircraft Cruise
   飞机巡航近场噪声经验预测方法研究
3. Surface radiating noise testing and research of engine using biodiesel
   柴油机燃用生物柴油表面辐射噪声测试与研究
4. Research on the spatial character of surface noise in shallow sea based on vector sensor
   基于矢量水听器浅海波导中海面噪声场的空间特性研究
5. The results show that, for the wind-related surface noise sources, the noise field at frequencies above a few hundred Hz is clearly characteristic of the low-noise-channel for above-mentioned sea-hydrographic distribution and various sea-bottom types.
   结果表明，对于几百赫以上的表面风关噪声，在上述水文分布和广泛的海底类型下，噪声场具有鲜明的低噪声信道特征。
6. The distribution characteristics of surface radiated noise of a small and high speed automotive diesel engine493ZQ are analyzed.
   以车用493ZQ型小型高速增压柴油机为研究对象，系统分析了其表面辐射噪声分布特性。
7. Partial cylinder misfiring method is used to separate machinery noise and combustion noise. The radiating noise sources are identified with near field scan technique and the main part of surface radiating noise can be found.
   采用部分缸熄火的方法对机械噪声和燃烧噪声进行了分离，在表面辐射噪声源的识别上，通过表面振动识别，找到了噪声辐射的主要部件。
8. Study on Identification of Surface Radiated Noise Sources of Vehicle Engine
   车用发动机表面辐射噪声源识别的研究
9. A Study on Surface Noise Sources Identification for Diesel Engine
   柴油机表面辐射噪声源识别的研究
10. The gain limitation of particle velocity and acoustic energy flux in the sea surface noise field and half-isotropic noise field is discussed based on orientation-exponent theoretic.
    从指向性指数出发分别推导了海面噪声场条件下和半各向同性噪声场条件下质点振速检测器增益和声能流检测器增益的理论极限。
11. With the study of minbus's accelerated exterior noise control, the principle of sound intensity measurement was applied, the sound intensity of a minbus's surface noise was tested, and the surface noise distribution was presented.
    在某微型客车的车外加速噪声控制研究中，运用声强测量原理对某微型客车的表面噪声进行了声强测量，得到了该车的表面辐射噪声的声场分布。
12. Identification and analysis of surface noise sources of marine diesel engine
    船用柴油机表面噪声源识别分析
13. The results of this paper proved that it is effective to reduce the engine surface noise by changing the structure parameters.
    结果证明，通过结构参数的改变来降低表面辐射噪声是行之有效的。
14. Anisotropic degree of horizontal direction and vertical direction in the sea surface noise field are discussed.
    论证了海面噪声场垂直与水平方向噪声的各向异性程度。
15. The calculation of space-time correlation function of noise field of surface noise source with dipole radiation model
    海洋表面偶极子辐射模型的噪声场时空相关函数的计算
16. In this article, the time-space correlation function of acoustic pressure and particle velocity in the sea surface noise field are introduced.
    介绍了海面噪声场条件下的声压与质点振速的时空相关函数。
17. In this paper, the surface noise distribution of 492Q engine was measured and analysed by means of complex acoustic intensity method.
    本文利用复声强法对492Q汽油机的表面噪声分布进行了比较详细的试验分析。
18. Thirdly, in the study of scene rendering in VE system, to overcome the surface noise introduced by normal vectors in the standard Marching Cubes algorithm, a new normal vector smoothing algorithm is proposed, which further improves rendering effect of the VE system.
    在虚拟内窥镜的场景绘制算法研究中，针对标准MarchingCubes算法中由法向量引起的表面噪声，提出了一种法向量平滑的算法，有效地抑制了噪声，使得表面绘制结果更加逼真；
19. The experimental results compared with using the method of covering the engine with lead show that the method of sound intensity with double-microphone is able to identify engine surface noise sources much more accurately and quickly.
    与铅覆盖法的对比结果表明，双话筒声强法可以更为准确迅速地识别发动机的表面声源。
20. Identification of Engine Surface Noise Source via Blind Separation Technique of AC Algorithms
    AC算法的盲分离技术识别发动机的外部噪声源
21. Study on Surface Noise Distribution of Three ring Reducer
    三环减速器表面噪声的实验
22. The contents of the thesis is: ( 1) Horizontal acoustic energy flux detector is maximum likelihood detector and maximum likelihood estimator in the sea surface noise field.
    证明了海面噪声场条件下水平方向声能流检测器是极大似然检测器和极大似然方位估计器，并给出方位估计的CRB。
23. A stable vapor film is observed on the heater surface without noise and vibration during silent film boiling;
    在无噪声沸腾中，在平板加热器表面形成一个极稳定的气膜，并且，没有噪声和机械振动出现；
24. A Study on Surface Noise Distribution of 492Q Engine
    492Q汽油机表面噪声分布的研究
25. In this paper, the relationship between the structure vibration and the surface noise radiation is analyzed and deduced from the acoustic and vibrational theory.
    本文从声学振动理论出发，分析并导出了结构的振动与表面辐射噪声的关系。
26. Identification of Minibus's Surface Noise Source
    微型客车表面噪声源的识别
27. However, road engineers and researches in all countries are always puzzled when choosing what kind of anti-slippery structure, whose function must not only strengthen the anti-slippery performance, but also reduce the road surface noise.
    然而水泥混凝土路面采用何种抗滑构造，既能增强路面抗滑性能，又能减小路面噪声，一直以来困扰着各国道路工作者。
28. This study points out that pavement surface distress noise is mainly divided into impulse noise and Gaussian Noise.
    指出路面破损图像的噪声主要分为脉冲噪声和高斯噪声两类。
29. The local method for map building method is studied, reasonable height model is used to remove surface noise. In this chapter, calibration results and stereo matching results are tested by depth measurement.
    第五章，分析了理想双目立体视觉系统的深度测量误差模型，研究了局部地图的构建方法，采用合理的高度模型去除地表噪声。
30. This method is simple, practical, low cost, does not affect the drilling operation. However, seismic data while drilling is seriously affected by the strong surface noise and drill string propagation.
    这种方法简单、实用、成本低，丝毫不影响钻井作业，但随钻地震资料受地面强干扰噪声和钻柱传播的影响严重。

noun

1. noise produced by the friction of the stylus of a record player moving over the rotating record