And the velocity variation of the compression wave in the rock has a little influence on the pressure of percolation flow . It is important for understanding the rock fragmentation mechanism with jet .

压力波（纵波）在岩体中的传播 速度 变化，对岩石局部范围内的渗流压力影响不大的规律，这对认识岩石在射流作用下的破碎机理有重要意义。

From the spatial distribution and localized velocity variation three substructures are found by using κ - test technique .

我们运用 k-test方法研究了它们的视向 速度分布，发现了三个明显的子团。

Wind Velocity Variation from 1951 to 2006 in the North China Plain

华北平原1951年至2006年 风速 变化 特征 分析

Lateral velocity variation causes error in stack velocity analysis .

横向 变速会使常规叠加速度分析产生误差。

Observation and Study of Wind Velocity Variation with Altitude over the EXPO Land Shanghai

上海世博园上空边界层 风 垂直 变化观测研究

Micro-cracks of rocks is closely related to in situ velocity variation .

岩石微裂隙与主孔原位 波速 变化有密切关系。

Based on the plane wave model of sound propagation the direction finding formulas for a cross array and regular tetrahedron array are derived in a vector analysis method . And their various locating properties under the condition of the effective sound velocity variation are analyzed .

基于声传播的平面波模型，采用向量分析方法导出了十字阵和正四面体阵的测向公式，分析了两者在有效 声速 变化条件下不同的定位性能；

The time-distance curves of several shallow lateral velocity variation models are estimated by using ray tracing method .

本文采用射线追踪方法计算了几种浅部地层 速度横向 变化模型的时距曲线。

Furthermore an interpolation method was probed which can reduce the velocity variation of the hobbing enhance the manufacturing accuracy and efficiency .

采用该插补方法，非圆齿轮的滚齿加工可以在一段数控程序内完成，减少了加工时的 速度 波动，提高了加工精度和加工效率。

The correction of an excessive velocity variation is not as serious a problem as the correction of excessive angular variation .

对 速度 变化过大时的修正问题不象对偏角变化过大时的修正那样重要。

The Influence of shallow lateral velocity variation upon deep velocity analysis

浅层 速度横向 变化对深层速度分析的影响

That bridge wind loads reliability and wind speed change is not only related with the wind velocity but with value of discrete . Namely it is related with the distribution of velocity variation .

说明桥梁受风荷载作用时，可靠度变化不仅与风速均值有关，还与风速的离散型有关，也即桥梁的可靠性变化与 风速的分布 变化 规律有关。

This paper presents the velocity variation for typical liquid bridge shape and applied temperature difference . The experiment results agree with the numerical simulating results .

通过地面模拟微重力环境的液桥实验以及数值计算，研究了外加温差、液桥 腰径等对 流场 速度 分布 的 影响，实验结果与数值计算结果相当符合。

The damage state of rock can be determined with number of acoustic emission and velocity variation under uniaxial monotonous loading .

单轴单调加载下的声发射数和 波速 变化已用作岩石损伤测定方法。

A velocity variation boundary belt appears beneath the Dabie-Sulu orogeny belt .

大别-苏鲁造山构造带下面存在着一条地震 波 速度 变化带。

A diagonal-flow fan with large inclined stream surface and axial velocity variation has been designed and manufactured with the method developed by the authors .

本文利用斜流叶轮准三元设计法，设计并研制出了具有大倾斜流面和轴向 速度 变化的后置导叶型斜流通风机。

According to the experimental values of the transverse wave strength in gaseous detonation an approximate method for estimating the extreme values of the leading shock velocity variation has been established by analyzing the pressure change in front of and behind the transverse wave collision .

根据气体爆轰波横波强度的实验观测和理论分析结果，通过分析横波碰撞前后前驱激波后的压力 变化，提出了胞格 周期中前驱激波 速度上限和下限值的估算方法。

The relation between signal frequency and measured velocity variation and the largest velocity variation which can be responded by photomultiplier and digital oscilloscope in the VISAR application are discussed .

论述了 VISAR测速中信号频率与被测 速度增量的关系和光电倍增管、数字示波器所能响应的最高速度增量。

Wave equation prestack depth migration is an ideal seismic data imaging technique for the area where there occur very complicated geologic structure and severe lateral velocity variation .

波动方程叠前深度偏移技术是解决复杂构造和 速度横向 变化剧烈地区的地震资料成像问题的理想技术，可为复杂地区的高精度构造解释和地质解释提供可靠保证。

It is not sensitive to deep mantle velocity structure but is more sensitive to near station velocity structure . Travel time responds to the velocity variation while the polarization responds to the velocity gradient variation .

对深地幔速度结构不敏感而对接收器附近的 速度结构和速度梯度最敏感，在这一意义上它与 走时反演是互补的。

The factors effecting hobbing precision are analyzed systematically including relative position and velocity variation between cutter and workpiece .

文中对滚齿加工中机床刀具与工件间的各种位置 变化对齿轮加工精度的影响，对滚齿加工过程中刀具相对工件 偏差 的 变化 速度对加工精度的影响进行了全面的分析。

The local water level change flow pattern and velocity variation after the constructed are analyzed at spring tide in summer then the change of scouring and silting is calculated and analyzed in a hydrological year .

利用实测夏季大潮水流条件分析工程实施对工程区域流态、 流速、水位的 变化，并根据一个水文年资料计算分析工程建设后河床的冲淤变化。

The Experiment Study on Measurement of Seismic Velocity Variation Using Different Seismic Sources

利用多种震源测量介质波 速度 变化的实验研究

This makes clear that the heterogeneity of the medium can produce important influence on the law of wave velocity variation before rock rupture .

这说明介质不均匀性会对岩石破裂前的 波速 变化规律产生不可忽视的影响。

In this paper the velocity distribution in the cross section and the axial velocity variation of vertical jet flow in statical and uniform enviroment were studied by means of experiment .

本文根据实测的实验资料，论述了静止均匀环境中淹没铅直射流的横断面流速分布及其轴线 速度 的 变化 规律。

The paper presented an approach of plane wave decomposition-based wave-equation prestack time migration suitable for the medium of lateralweak velocity variation .

本文提出了一种适用于 速度弱横向 变化介质中基于平面波分解的波动方程叠前时间偏移方法。

By this method the number of the dynamic equations is least but it is necessary that the constraint relations are established between the velocity variation of every rigid body and the generalized velocity variation the relations are often complicated .

用相对坐标法得到的系统动力学方程的个数是最简数量，但要建立刚体的 速度 变 分与系统广义速度变分之间的约束关系，这种关系有时是非常复杂的。