Propagation characteristics of longitudinal modes in pipes filled with and without water were investigated theoretically.
对未充水和充水管道中纵向模态的传播特性进行了研究。
Propagation characteristics of longitudinal ultrasonic guided waves of steel rod embedded in infinite medium are studied in theory.
从理论上分析高频纵向超声导波在埋于无限大介质中钢杆传播的特性。
It is for the propagation of longitudinal waves that the buckling of the structures takes place and grows.
正是由于具有局部特征的应力波传播，引起结构局部或整体发生和生长。
The fatigue crack propagation rate (FCPR) of as-rolled AM60 in the longitudinal direction is higher than that of the transverse direction.
轧制AM60的横向疲劳裂纹扩展速度（FCPR）明显地高于纵向。
The paper studies non-iterative bidirectional beam propagation method based on scattering operators which is used in numerical analysis of optical waveguide with abrupt longitudinal refractive index.
本文主要研究了基于散射算子的非迭代双向光束传输法数值分析纵向折射率有突变光波导的稳定性和精度等问题。
Propagation characteristics of high frequency longitudinal axisymmetric modes in full-length-bonding bolt are studied.
分析高频纵向轴对称超声导波在全长黏结型锚杆中传播的特性。
The paper first studies beam propagation method which is used in numerical analysis of one-way process of an optical waveguide with continuous longitudinal refractive index.
本文首先研究了光束传输法数值分析纵向折射率连续变化光波导的单向光波传输过程。
The structure acoustic radiation caused by longitudinal vibration of shafting is reduced by changing excitation force propagation path and adopting vibration isolator or dynamic vibration absorber.
改变轴系纵振激励传递途径，在轴系上安装纵振减振器或动力吸振器以降低结构水下辐射噪声。
The relationships between dynamic contact force and indentation are derived in the case of longitudinal wave propagation.
在仅考虑纵波传播的情况下，寻出了撞击力-压入位移关系。
Solid Youngs modulus is determined by measuring the propagation speed of longitudinal wave induced by ultrasonic wave in solid media.
通过测量超声波在固体介质中传播的纵波传播速度，进一步测量该固体的杨氏模量，得到了测量固体杨氏模量的一种新方法。
Solid Young's modulus is determined by measuring the propagation speed of longitudinal wave induced by ultrasonic wave in solid media.
通过测量超声波在固体介质中传播的纵波传播速度，进一步测量该固体的杨氏模量，得到了测量固体杨氏模量的一种新方法。
The results show that the average velocity of the shock wave attenuation in magnesium alloy is in good agreement with the propagation velocity of stress longitudinal wave;
研究结果表明：冲击波在镁合金中的平均传播速度与应力波中纵波的传播速度基本一致；
The results show that the average velocity of the shock wave attenuation in magnesium alloy is in good agreement with the propagation velocity of stress longitudinal wave;
研究结果表明：冲击波在镁合金中的平均传播速度与应力波中纵波的传播速度基本一致；
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