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The material inhomogeneity because of the low velocity layer has a great effect on geoid. 低速层的存在导致的物质不均匀对大地水准面的影响比较大。
Using refraction method to detect low velocity layer in intricate area is difficult infield and poor in effect, generally. 摘要在地表地形复杂的地区进行低降速带探测时，采用常规地震小折射方法，在现场难以实施，而且效果往往不佳。
In Weihe graben, high and low velocity layer occurs alternately in upper and mid crust, which reflects the effect of faulting in shallow crust. 渭河盆地内上中地壳高低速度层交替出现，反映了断层活动在浅部的影响；
The buried depth of Moho discontinuity is 26.5 km and beneath the Moho the velocity is about 4.7 km/s in average,including several small layers,especially an obvious low velocity layer just beneath the Moho. 莫霍面埋深为26.;5 km;莫霍面以下平均速度为4
It is difficult for conventional reflection seismic surveys to get the information of low velocity layers underlain high acoustic impedance layers, such as evaporites and basalts. 在蒸发岩、玄武岩等高阻抗岩层发育地区，常规反射地震往往难以获取高阻抗层以下的地层地质信息。
Combined with dominant depth distribution of many small medium earthquakes, we also discuss the correlation between seismo active layers and structures of high and low velocity layers. 最后;结合多次中小地震的优势深度层位;讨论了多震层与高低速层结构的相关性.
the low velocity layer exists in a very wide range of the mid-crust. The lowest velocity value is near 5.60 km/s; 中地壳在很大范围内存在低速层;其最低速度值达5.;60km/s;
low velocity layer 低速带
Gordian technique for separated layer instrument in slim hole. 小直径井下分层治理工具关键技术
This system focused on the anemometry at low velocity range. 该系统主要作用是针对低流速环境中的流速测定。
THE RELATIONSHIP BETWEEN LOW VELOCITY LAYERS AND RHEOLOGY OF THE CRUST IN NORTH CHINA AND ITS EFFECT ON STRONG EARTHQUAKE 华北地区壳内低速层与地壳流变的关系及其对强震孕育的影响
Laterally-nonuniform weathered layer and very low velocity of shear wavescause high P-SV static moveouts which show severe lateral variation. 由于低速带横向不均匀，横波速度很低，造成了P-SV转换波静校正量大且横向变化剧烈。
Wide-angle reflection and refraction seismic has been success fully used to image zones beneath high velocity layer. 摘要广角地震可以实现对高速屏蔽层下模糊区的地震成像。
Fast and Reliable Method for Inversion of Rayleigh Wave Dispersion Curves for Lower Velocity Layers 低速夹层上瑞雷波频散曲线快速稳定反演算法
To prevent clogging of the pressure tap by fire solids gas is bled into the bed at low velocity at the taps. 为了防止测压管嘴被微细颗粒堵塞，在管嘴处以低流速向床内注入气体。
The complex seismic wavefield beneath high velocity layer was investigated on layer stripping observations of seismic physical model. 通过地震物理模型的分层观测，详细研究了高速屏蔽层下的复杂地震波场。
The cross-well seismic survey has no disturbance from low velocity belt,with high S/N and high sampling rate.A single sandbody,rhythmic layer and interbed can be differentiated with it. 井间地震无低速带干扰,具有高信噪比、高采样率等特点,能够识别单砂体、韵律层和层内夹层,在沉积微相划分、微构造研究、低序级断层识别、储层精细描述等方面具有明显的优势。
The geothermal anomaly, low velocity zone and high conductivity layer in crust, and frequent occurrence of strong earthquakes show that the study area is an active area of modern tectonization. 地热异常、地壳内存在低速层和高导层、强烈地震频繁发生等现象说明，这一地区是现代构造运动的活动区。
The anticline structure model of overlaying variable velocity layer was established and the physical modeling testing and migration processing analysis carried out. 建立了上覆变速层的背斜构造模型，并对物理模拟实验结果和偏移处理效果进行了分析。
To prevent clogging of the pressure tap by fine solids gas is bled into the bed at low velocity at the taps. 为了防止测压管嘴被微细颗粒堵塞,在管嘴处以低流速向床内注入气体。