The low velocity layer possibly is formed by metamorphic water.
壳内低速层可能是由变质水造成的。
The crust is multilayered and there exists a low velocity layer in the lower crust.
地壳由多层介质组成，在下地壳中存在着低速层。
Many seismic profiles in South China have demonstrated that low-velocity layer generally exists in the middle crust.
华南沿海众多的地震测深剖面揭示出地壳不同深度上存在着壳内低速层。
With forward modeling, this paper studied in detail the effects of irregular surface, low velocity layer, and Q value on reflections.
以正演模拟为研究手段，通过对一系列模型的数值模拟，详细分析了起伏地表、低降速带和Q值对反射波的影响。
Reflections are impaired by interferences, especially irregular topography and low velocity layer when they travel through near surface.
反射波在经过近地表的过程中受到诸多因素的干扰，尤其是地表起伏和近地表低降速带，对其影响甚大。
Authors put forward an effective method which achieves long-wavelength static correction by deriving the low-velocity layer structure from refraction first breaks.
提出一种利用折射初至反演低速带的结构来进行长波长静校正的有效方法。
Therefore it is considered that interaction between low velocity layer and fault could be one of the main physical property and structural environment in seismogenesis.
故认为低速层和断层的作用可能是地震孕育的主要物性和结构环境因素之一。
The horizontal low velocity layer, the vertical low velocity zone and the high velocity layer in the basement of the lower crust are related to the ore_forming processes.
文中还探讨了中国大陆主要成矿域岩石圈的现今活动性，以及地壳厚度、壳内低速层、“墙式”地震剪切波垂向低速带和下地壳底部高速层（体）的分布特征以及与成矿作用的关系。
The stack velocity calculated on the floating datum depends on the velocity of medium underlying the low velocity layer and is independent of topography and low velocity layer.
在此浮动基准面上求取的叠加速度仅取决于低速带底板下伏介质的速度，而与地形、低速带无关。
The dispersive characteristics of the Rayleigh waves propagated in the layered media are investigated experimentally by ultrasonic detection test, especially in the presence of a low-velocity layer.
通过超声实验研究了沿分层介质，特别是含有低速层的分层介质传播的瑞利波频散特征。
The dispersive characteristics of the Rayleigh waves propagated in the layered media are investigated experimentally by ultrasonic detection test, especially in the presence of a low-velocity layer.
通过超声实验研究了沿分层介质，特别是含有低速层的分层介质传播的瑞利波频散特征。
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