查询词典 wave velocity

Currently, orthogonal coordinates one-way wave downward continuation has been accepted by petroleum industry as a tool for imaging complex geology because of its efficiency, accuracy, stability and ability of handling rapid velocity variation.

目前，正交坐标系单程波下行延拓以其计算效率、精确性、稳定性和处理高速变化速度模型的能力，成为工业界普遍采用的复杂介质成像方法。

S: In the non-homogeneous semi-infinite medium, the shear modulus varies in the form of exponential function along the depth, by the perturbation method , the wave function solution and phase velocity equation of the Rayleigh surface waves are obtained in the paper.

对剪切弹性模量沿深度以指数函数变化的非均质半空间，本文用摄动法得到了Rayleigh面波的波函数解答及相速度方程。

And the phase velocity of fast wave will decrease exponentially with frequency.

快纵波的相速度随频率的增大以指数形式减小。

Based on different P-wave phase velocity approximations, different traveltime-distance formulae can be deduced.

基於不同的相速度近似公式会得到不同的时距关系式。

Setting of offset should be definedbased on the depth of target stratum and fields Rayleigh wave phase velocity range.

此外，测试中的偏移距应当根据被测的目标层深度和场地的瑞利波速度范围来确定。

The velocity and planarity of the shock wave were measured. The radiation temperature measured by soft X-ray spectrometer was consistent with the result by optical streak camera.

通过冲击波法测得的腔内辐射温度与软X光能谱仪的测量结果一致，验证了冲击波速度测量的可信度。

The error is mainly the system error of the experiment, and the velocity measurement error is the identification of the first arrival of the primary wave and the attenuation measurement is the coupling between the sample and transducer.

对误差分析表明，本文研究中的误差主要来自于实验系统误差，其中速度观测误差来自于对首波初至点的确定，声衰减观测的误差来源于探头与样品之间的耦合状况。

The finite-difference method of calculation on primary wave traveltime based on any rectangular grid and a local plane wavefront approximation has high precision and can apply to complex media with violent velocity variation.

基于任意矩形网格和局部平面波前近似的有限差分初至波走时计算方法精度较高并适用于强纵横向变速的复杂介质。

A high frequency secondary instability mode is detected, which rides on the primary instability wave in time domain and appears at the inflectional point of mean streamwise velocity profile.

结果表明，高频二次不稳定性在时域上表现为骑在基频波的特定的相位区域。

A small-amplitude progressive wave in a stretched string has a velocity of 10 m s-1 and a frequency of 100 Hz.

一个小幅度逐步波加长字符串的速度10米的S - 1和一个频率为100赫兹。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。