查询词典 wave velocity

Correlation of drillability anisotropy index of the roller cone bit and PDC bit, the difference between drillability of the roller cone bit in perpendicular and horizontal directions of the bedding plane with the P-wave velocity anisotropy coefficient are studied respectively by means of mathematical statistics. A mathematical model is established for predicting drillability anisotropy index by using P-wave velocity anisotropy coefficient.

用数理统计方法研究分析了牙轮钻头岩石可钻性各向异性指数、牙轮钻头垂直于和平行于地层层面方向岩石可钻性差值和PDC钻头岩石可钻性各向异性指数与纵波波速各向异性系数的相关关系，建立了用纵波波速各向异性系数评价地层可钻性各向异性的模型。

Correlation analysis of the two lists of the probe signals are done by using the statistic method. Void wave instantaneous velocity probability distribution graphs and the graphs of a relation between void wave average velocities and fluxes are obtained. The comparison between the fitting lines and the theoretical formulation of void wave velocity is drap.

通过统计的方法对两列探针获得的局部瞬时空隙率信号进行相关性处理，得到不同流量和不同外加扰动下空隙率波瞬时波速概率分布图及空隙率波平均波速和流体流速关系图，并对空隙率波平均波速拟合直线和空隙率波波速理论公式进行比较。

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。

By measuring the velocity of the P wave and S wave on the three orthotropic different directions including parallel and vertical direction to the stratum of the compacted rock samples including slate, phyllite, mylonite and metasandstone, the two obvious anisotropy effects of P wave and S wave velocity are put forward.

通过对板岩、千枚岩、糜棱岩和变质砂岩等4种岩石在平行和垂直层理、板理的3个正交方向上的纵、横波波速试验，提出了致密岩石纵波波速的各向异性与横波波速的各向异性普遍存在着一致性和差异性两种特征。

By measuring the velocities of the P-wave and S-wave in three orthotropic directions including parallel and vertical directions to the stratum of the rock samples for slate, phyllite, mylonite and metasandstone, and based on the wave velocities of other rocks from the relevant studies, the anisotropic effect of wave velocity ratio of the P-wave and S-wave for most rocks is put forward.

通过对板岩、千枚岩、糜棱岩和变质砂岩等4种各向异性岩石在平行和垂直层理或板理的3个正交方向上进行大量的纵、横波波速试验，并结合对相关文献中己有岩石波速数据的深入分析，提出岩石介质纵、横波波速比的各向异性效应。这种效应广泛存在，其发育程度受到岩石类别的控制。

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。

In this paper, one example from Zhongyuan Oilfield, Wen-33-26 well with long spacing acoustic wave train log is given. The measured ''shear wave velocity was treated as Rayleigh wave velocity. The poisson ratio and Young...

本文以中原油田Wen-33-26井的长源距声波全波列资料为例，将所测得的井下"横波"速度当作瑞利波速度处理，求得的泊松比和杨氏弹性模量值更为合理。

In this paper, those teleseismic records with clear P waveforms are chosen to carry out receiver function analysis and modeling. A simple crustal structure model beneath the station is obtained, in which the Moho depth is 28 km. On the top of the upper crust is a 2 kmthick low velocity layer with a shear wave velocity of only 23 km/s. The shear wave velocity increases gradually with depth to 38 km/s in the lower crust.

本文对具有清晰P波波形的远震记录进行了接收函数处理和计算模拟，得到台站下简单的地壳结构模型，其莫霍面深度为28 km，上地壳顶部有一层2 km厚的低速层，横波速度只有23 km/s，向下逐渐过渡到横波速度为38 km/s的下地壳。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。