查询词典 wave velocity

The results show that whether the stiffness profiles are smoothly varying or layered, the fundamental mode dominates the surface wave field and the effective phase velocity approaches to the phase velocity of the mode in far field for the regular profiles. For the irregular profiles, the higher modes have a significant influence on the surface wave field. The intensity and the frequency range of the influence are related to variation of the profile stiffness.

结果显示，无论剖面刚度是缓变还是分层变化，对规则剖面，表面波场基阶模态占主导地位，远场表面波有效相速度与基阶模态相速度接近；对不规则剖面，表面波场中高阶模态影响较大，影响程度及频率范围与剖面刚度变化有关。

So for the moment, we recommended in the newguideline that to measure pulse wave velocity, carotid artery pulse wave velocity which means arterial stiffness, because we have good evidence that it is an independent predictive value for cardiovascular events.

所以目前，我们在新的指南中推荐测量脉搏波速度，测量颈动脉的脉搏波速度，这个指标就是代表动脉僵硬度，因为我们有很充分的证据证明它对心血管事件有独立预示价值。

When making usual assumption of a horizontally-layered medium during inversion, the lateral variation of S-wave velocity will be falsely recognized as the vertical variation, hence introducing artifacts in 2-D S-wave velocity imaging.

本文将藉由有限差分法之数值模拟说明，在具有侧向变化之地层，其於空间上有非稳态之性质，并不符合一维反算之假设。

The research results show that there is a good positive correlativity between dynamic modulus of elasticity and the longitudinal or transverse wave velocity, but there is no such positive correlativity between dynamic Poisson's ratio of the rocks and its longitudinal or transverse wave velocity.

研究结果表明，煤系岩石的动弹性模量与岩石的纵波或横波速度具有很好的正相关关系，而与泊松比不具有这种正相关关系。

The paper points out the defects of the const pressure wave velocity method and do some improvements on it rebuilding the expressions of the pressure wave velocity in accordance with the Simpson's rule.

指出了常负压力波波速定位方法的局限性，并采用改进的负压力波定位技术，将管道内的负压力波速公式采用复化辛普森公式进行了改造。

The earthquake happened in the place of anomalous area of high wave velocity ratio surrounded by low wave velocity ratio.

地震发生在低波速比异常区包围的高波速比异常区的交汇部位。

The main factors effecting on exploration precision of surface wave are analyzed in the light of calculation of phase velocity of surface wave; the merits and demetits of common computing methods for phase velocity between stations and their applied range are discussed and calculation of interstation Green's function for correcting phase is put forward to get the precise phase difference between two stations.

分析了影响面波勘探精度的主要因素，针对计算面波相速度的精度问题，讨论了常用测量台间面波相速度方法的优缺点及其适用范围，并提出通过测量台间格林函数进行相位校正，以得到两台之间的精确相位。

The main factors effecting on exploration precision of surface wave are analyzed in the light of calculation of phase velocity of surface wave; the merits and demetits of common computing methods for phase velocity between stations and their applied range are discussed and calculation of interstation Green's function for correcting phase is put forward to get the precise phase difference between two stations.

分析了影响面波勘探精度的主要因素，针对计算面波相速度的精度问题，讨论了常用测量台间面波相速度方法的优缺点及其适用范围，并提出通过测量台间格林函数进行相位校正，以得到两台之间的精确相位。以合成的高频理论地震图作为记录信号，并在理论地震图上叠加了 2 0 %的随机噪声，利用这些方法分析理论信号，数字实验表明：在相干频率范围内，格林函数方法能够精确测量台间相速度，而互相关法和窄带通滤波互相关法所得结果较为离散。

The compressive strength and elastic wave velocity of cement soil are determined respectively by consolidation non-drainage triaxial shear test and transmission method so as to study the effect of saturation on the compressive strength, the elastic wave velocity and their correlation.

用固结不排水三轴剪切试验方法和透射法，分别测定改良土的抗压强度和弹性波速，从而研究饱和对水泥改良土抗压强度、弹性波速的影响以及两者的相关性。

Then, the relation between the damping coefficient and amplitude ratio of reflected velocity wave to incidenced velocity wave on pile top was established.

试验结果表明，针对不同工程情况可以在速度波波幅比与桩土相互作用阻尼系数之间建立一致的函数关系。

Salt is good, but if the salt becomes flat and tasteless, with what do you season it?

14：33 盐本是好的，盐若失了味，可用什么叫它再咸呢？

He reiterated that the PLA is an army of the people under the leadership of the Communist Party of China.

他重申，人民解放军是在中国共产党领导下的人民军队。