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- direct sound propagation path 直达声传播途径
- underwater sound propagation path 水声传播途径
- Sound Propagation in the Nocturnal Boundary Layer. 夜间边界层中的声传播。
- Link A bi-directional propagation path for exit signals. 链接退出信号的一个双向的传输路径。
- The result of simulation indicates that the interposition caused by direct path and ground reflected propagation path can lead a lot of deep fading. 对二径模型的仿真结果表明,主反射波与直射波干涉现象产生的深衰落点附近电平可能会低于系统灵敏度电平,可能会造成系统数据丢失或失去跟踪。
- First you hear the direct sound, then you hear the room reverberation. 首先你听到的是直达声音，然后你就听到了被延迟的混响声音了。
- The sparker was originally developed for fundamental studies of underwater sound propagation and of subbottom geology. 火花发生器原来是为了进行关于水下声波传播及海底地质的基础性研究而制造的。
- In radiocommunications, pertaining to variations in the received signal strength due to varying ionization conditions over the propagation path. 在无线电通信技术中,接收信号的强度由于传播通路上电离条件的改变而引起的变化。
- The sound propagation in fluid-filled borehole is a rationale of acoustic well logging technology. 充流体裸眼井模型中的声场传播是声波测井技术的理论基础之一。
- The sound propagation in duct with non-locally reacting liner is discussed in this paper. 本文对声波在空腔非局域反应声衬管道内的传播进行了研究。
- The Paper analyzes the conducting EMI propagation path of converter,and presents the working principle of EMI power filter and the design of EMI power filter. 分析了开关变换电路中的传导EMI的传播路径,介绍了EMI电源滤波器的工作原理以及EMI电源滤波器的设计。
- The silent form of the graffiti can be human and has nonsense. It roots in the direct sound, beautiful colors, exaggerated modify and it's a sign of a young city. 涂鸦是静止的表现方式，它可以是人性的，也可以没有任何含义。它基于最直接的印象，色彩明艳，修饰张扬，是一个城市年轻的标志。
- The energy absorbed by the medium of the propagation path causes heating, leading to refraction index change that causes self-defocusing, which induces thermal blooming. 热晕使激光发生畸变，限制了激光能量在大气中的有效传输。
- A analytical mode matching method is developed for the sound propagation through rectangular flow duct with mean flow and with lining. 流管实验装置是测量有流动情况下航空发动机消声短舱内声衬声阻抗的主要装置。
- DONG Yu-guang,LI Hui-jian,YAN Xiao-li.Analysis of the crack propagation path of concretes under four-point shear load[J].Acta mechanica solida sinica,2004,25(2):198-202. [2]董宇光;李慧剑;严小丽.;四点剪切加载下混凝土裂纹扩展路径研究[J]
- The ear protrudes away from the head and is shaped like a cup to direct sounds. 耳朵从脑袋旁边突出来，像杯子一样接收声音。
- The gas flame accelerating mechanism that obstacles are set along the flame propagation path can owe to the positive feedback of combustible process in onflow zone,which is induced by obstacles. 在沿火焰传播的通道上设置障碍物,对气相火焰的加速作用机理可归功于障碍物诱导的湍流区对燃烧过程的正反馈。
- Methods A four-step procedure was adopted to configure the coarse mesh. The method of longest edge propagation path and the edge collapse were used to refine and optimize the final mesh. 方法采用四步剖分法得到初始网格并用最长边繁衍路径(longest edge propagation path)与棱边收缩(edge collapse)的方法进行网格的细分与优化。
- Abstract: In this paper the current situation and trends on the study of pipeline vibration and sound propagation are completely summarized,and the researches of this area are looked forward to the future. 文摘:本文对管道振动及声传播领域的研究现状和水平分类作了比较全面的综述,并对今后开展潜艇管道振动、声传播及噪声控制的研究进行了展望。
- To calculate the constraint propagation path,constraint matrix and constraint propagation matrix are formulated,then a new fast algorithm is presented to identify the constraint loop. 提出了几何约束矩阵和约束传播矩阵来表达和揭示约束传播的内在机制,并提出了一种闭环约束识别的新方法。
