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- The principle of the car acceleration noise is discussed and the acoustic field model for underneath car cavity is derived. 论述了轿车加速行驶噪声的原理,推导了轿车与地面间声场的声学模型。
- The trajectories of particle movements in a standing wave acoustic field are recorded by fast-speed video camera. 采用可视化实验的方法,拍摄可吸入颗粒在驻波声场中的运动轨迹。
- Show reduced scale model can accurate reflection actual hall acoustic field over loud time. 表示缩尺模型可以准确的反映实际厅堂声场馀响时间。
- A method for measuring acoustic field of electromagnetic ultrasound is introduced. 介绍了一种测量电磁超声声场分布的方法。
- It is very important to pick out the qualified flakes by acoustic field measurement in equipment manufacture. 通过声场测量,筛选出合格的压电陶瓷球片,在治疗设备的制造中显得尤为重要。
- Much less EPU times are required for calculating the superposing acoustic field than calculating the classical Fresnel integral. 用单阵元分布函数迭加所得的换能器声场分布的数值计算,比计算经典的Fresnel积分的运算量要小得多。
- Aim In order to simulate the agglomeration of fly ash particles in the acoustic field more exactly, a new math model is constructed. 目的为了更精确地模拟煤飞灰微粒在声场中的团聚机理,建立一种新的数学模型。
- The experimental research on the pipe flow under the influence of high-intens ity acoustic field is presented in this article. 用实验手段研究强声场对管道内气体流动的影响。
- Acoustic vector sensor can measures the pressure and particle velocity information of the same point in acoustic field simultaneously. 摘要 声矢量传感器能够同步、共点地拾取声场的声压和质点振速。
- Thus, this skin decouples the vibrating structure from the acoustic field by modifying the wavenumber spectrum of the radiating surface. 首先考虑在边界表面的一端具有脉冲或周期振荡式边界热通量的正算问题。
- Brillouin enhanced four wave mixing, whose interference beat frequency drives an acoustic field, can improve the SBS phase conjugation fidelity. 采用四波混频加强SBS的方法，其相干拍频驱动声子场，能提高SBS相位共轭保真度。
- Abstract: The horizontal-longitudinal correlations of low-frequency acoustic field in shallow water are inv-estigated based on experimental data. 文章摘要: 基于一次浅海声学实验数据,研究了浅海低频声场的水平纵向相关特性。
- The acoustic field of wideband noise at low frequencies radiated from a short-range moving object in shallow water forms a hyperbolic interference pattern in LOFAR. 近距离目标辐射的低频宽带噪声通过浅海声场后，存LOFAR图上形成双曲线干涉条纹。
- In underwater acoustic field, triple arrays for ranging, target motion analysis (TMA), match field processing (MFP) are three main methods for passive sonar ranging. 在水声领域,三元子阵测距、目标运动分析(TMA)和匹配场处理(MFP)是被动噪声测距的3种主要技术。
- Non-inertial cavitation is the process where a bubble in a fluid is forced to oscillate in size or shape due to some form of energy input, such as an acoustic field. 非惯性的气穴现象是泡沫在一种液体中由于一种能量输入的缘故被迫在体积和型态上震动。
- According to the photo of the particle movement orbit,the particle movement law under different acoustic field is summarized,and the foundation for the simulation of PM2.5 mo... 根据颗粒在声场中的运动轨迹照片总结出颗粒在不同声场作用下的运动规律;为PM2.;5运动过程模拟奠定了基础。
- Owing to the differences of structural material's properties, the effects and distribution of acoustic field in buildings generated by traffic and neighbor noise are different. 由于建筑材质之差异，在建筑结构中因交通环境噪音与邻居居家噪音所造成之声环境亦有不同之影响及分布。
- The propagation modes of internal acoustic field and the elasticity and wall thickness influence to them in a water-filled elastic tube waveguide were researched by applying the strict elastic theory . 本文采用严格的弹性理论,研究了水声声管的内部声场的传播模式以及弹性和壁厚对内部声场的影响。
- A simulation model is developed to estimate acoustic field in the anechoic tank, taking into account secondary reflection, variation of absorption coefficient with respect to the incidence angle, and effects of directional sources. 利用虚源方法建立了消声水池声场计算的声场模型,该模型考虑了二次反射、吸声系数随入射角变化、有指向性声源等多种情况。 利用声场模型对水池的声场进行了计算,分别考虑了点声源、吸声系数随入射角变化、二次反射和指向性声源等情况。
- The field artillery pounded away at the for tress. 野战炮兵连续炮击那座要塞。
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海词词典，十七年品牌
