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- 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。
- 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；
- 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 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
- 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
- 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
- lower velocity layers 低速软弱夹层
- 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
- 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。
- Now the refraction survey and uphole shooting are used in the exploration task for the low-depression velocity layers. 目前，在地震施工中应用小折射、微测井等方法，进行低降速带调查。
- 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。
- In the exploration of the low-depression velocity layers, refraction survey and uphole shooting are two frequently used methods. 目前，在地震施工中应用小折射、微测井等方法，进行低降速带调查。
- It has four times more maximum polyphony, allows longer duration within one project, has more velocity layers, and two MIDI I/Os means it can work with two units at the same time. 它有多出四倍的发声数，在一次使用里可以容许较长的使用时间，有更多的力道变化不同，而两组米地输入／输出让它可以同时和两个单体一起运作。
- 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。
- 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。
- 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。
- A flow passage in a wind tunnel that decelerates a stream of gas or liquid from a high to a low velocity. 扩散道风洞中的气流变迁，将会调整度的气体或液体流降到低速
